Duncan and Trent

This article focuses on the interactions between Duncan and Trent.

Phobia Factor
Trent teased Duncan about his fear of Celine Dion music store standees. After explaining to Lindsay the definition of a standee, an aggravated Duncan told Trent (and Courtney) to shut up.

Search and Do Not Destroy
Duncan was angry when Leshawna told him about Trent's incident with Heather that broke Gwen's heart. He said in the confessional that what Trent did was really messed up, then voted Trent off later that night.

Alien Resurr-eggtion
The conflict heated up when Duncan and Gwen were discussing their favorite movie, Alien Chunks. Trent attempted to join the conversation, but Gwen and Duncan saw right through him, since Trent did not seem to know much about alien movies. This made Gwen feel awkward, but Duncan simply dismissed Trent for trying too hard. Gwen, Duncan, Trent, and DJ formed a group for the challenge, which was to find alien eggs and return them safely to home base before getting splattered with Chef Hatchet's slime gun. Trent complained about Duncan in the confessional about how much he and Gwen were turning out to share too many similarities for his liking. Trent also takes the opportunity to insult Duncan's personality, questioning how manly a guy could be when he uses hairspray. Gwen loses her necklace after Chris dropped a slime bomb on them, which hits Duncan and eliminates him from the challenge. Gwen jokingly makes fun of Duncan for losing, which Duncan laughs back in response. Trent, however, seemed to perceive this exchange as something much more malicious on Gwen's end, saying how much he loved seeing Gwen "stick it to Duncan" even though the verbal exchange was not nearly as nasty as Trent thought it was. Suddenly, Trent was forced to choose between the eggs (the only one he could see was about to fall and break) or Gwen's lucky necklace (which was just about to fall into a sewer grate). He chose the necklace and gave it back to Gwen, but she decided to let Trent keep it. Duncan admits he would have gone for the win, and he mutters "girl" to Trent when he accepts the necklace, insulting his manhood. This prompts Trent to glare at him. After Trent found two eggs to secure the victory for Gwen and himself, Duncan was annoyed by Trent's success.

Riot On Set
The conflict continues as Trent and Gwen are about to choose who they want on their team. Gwen chose Duncan first for her team, inadvertently making Trent jealous again. In the confessional, Trent talks about how he feels betrayed. As a result, Trent responds by picking "the beautiful" Lindsay first, in an attempt to make Gwen jealous. Once the teams were assembled, the first challenge was to run up a steep prop hill with backstage equipment, including lights, backgrounds, and cameras. Trent gets angry after seeing Duncan catch Gwen when she falls, though when he questions Gwen about it, she simply states that they are teammates. Afterwards, Lindsay ends up helping Trent, and he states that they're teammates too. Later, as the Killer Grips begin to make progress, Trent taunts Gwen and Duncan, calling them "punk wannabes." While shocked by Trent's sudden mean streak, Gwen and Duncan resolve to bring Trent's team down. They succeed in doing so, thanks to Duncan's touching performance as a sentimental gangster. After the challenge, Trent and Gwen make amends when she assures him that she and Duncan are just friends.

Beach Blanket Bogus
Duncan is shown early on in this episode to have taken a liking to pranking Trent (similar to how he pranked Harold last season) by loosening the tops of the salt and pepper shakers and causing Trent to accidentally spill all of the salt and pepper on his eggs. Gwen slaps Duncan and scolds him for it, finding the act to be juvenile. After Trent inadvertently throws the excess salt and pepper at Heather, Duncan walks over to steal a piece of Trent's breakfast. Unexpectedly, Trent panics since Duncan leaves him with only eight pieces left. Duncan replies by stating how Trent is weird for fretting over something as trivial as how much breakfast he has on his plate. Gwen cuts in, assuring Trent that she likes weird, and then eats a piece of Trent's breakfast herself to leave seven pieces. She asks if it's better for him to have an odd number which, in the end, he's fine with. The first challenge of the day is being able to stay on the mobile surfboard while dodging various obstacles (such as sharks, high-speed winds, and a barrage of seagulls). Duncan wins this challenge for his team, leading to Gwen giving Duncan a congratulatory hug. Trent grows suspicious over this, stating to Owen how Gwen's team is a "ticking time bomb of betrayal."

As Gwen and Duncan sneak off together to dismantle the bus, Trent's team tries to win the second challenge. Trent's obsession with the number nine is still ever-present. Gwen is relieved, thinking Trent's obsession with her is at least not as bad as the "9" obsession, but Duncan points out that the amount of letters of Gwen's name and Trent's name combined makes nine, which makes her panic. After the Grips win the second challenge, Trent is chosen to participate in the final tie-breaking challenge: a dance-off. Trent figured the way to win Gwen's favor again would be to throw the competition so her team could win, and as such, he falls down in the middle of the dance-off, feigning an ankle injury. As Trent squirms on the ground, Chris comes over and states that what Trent is doing isn't dancing. Although Trent tries to claim that it is "modern dancing," Chris does not buy it and Duncan in particular thought his moves sucked, which leads Gwen to retort to Duncan that she is the one to blame for Trent losing his focus due to ignoring him throughout the episode. Duncan then states that Gwen is giving herself too much credit.

The Aftermath: I
When Trent appeared on the talk show episode, he told everyone about Gwen and Duncan hanging out together, which made Courtney jealous as well. Trent solely blames Duncan for his elimination after seeing Duncan suggesting to Gwen that his nine-obsession is due to the fact that the combined amount of letters in both Gwen and Trent's names equals to nine (which makes her even more uncomfortable about her relationship with Trent). However, his number nine superstition ends up having nothing to do with Gwen. Trent believed that Duncan inadvertently made Gwen break up with him over nothing. Later, Geoff tells Trent during the "That's Gonna Leave a Mark" segment that he knows Trent wants to "lay Duncan out for what he said to Gwen." This means that Trent is certainly not done with Duncan, and intends on confronting him on a later date for everything that happened.

Aftermath: Bridgette Over Troubled Water
Trent called Duncan an "idiot" for blowing his chance at a million dollars when he quit the competition for not wanting to sing a reprise, saying only he would do something like that.

Brunch of Disgustingness
After the Screaming Gophers and Killer Bass teams dissolved into gender-based teams, Trent and Owen were warmly welcomed to the guys' cabin. Trent and Duncan were seen, along with the other boys, enjoying their free time dancing and burping in the cabin. When faced with the challenge in the episode, the guys were more than willing to help Trent out due to his weak stomach. Trent and Duncan, along with the other guys, enjoyed a fantastic weekend on a cruise before all teams were officially dissolved.

No Pain, No Game
After their weekend getaway, the guys get along really well, with Duncan going as far as saying that they were all "tighter than family." However, this moment of unity was short-lived, and was broken when Chris dissolves the teams. The boys then distance themselves from one another. After Duncan took the first challenge, Trent told Gwen that his challenge was "harsh."

Search and Do Not Destroy
As Trent sailed away on the Boat of Losers, Duncan bid farewell to him. This is likely because he felt regretful that he, like the others, fell for Heather's trick, and voted off the innocent Trent. It is notable to mention when Trent left the island, Duncan was the only one to return his hand gesture, other than Gwen.

Million Dollar Babies
Duncan felt bad in the confessional about how Trent and Gwen's relationship came to an end when they were put on separate teams. Duncan also states that since he and Courtney are now in a similar situation, he wants to avoid risking his relationship with her by not throwing challenges like Trent did. Throughout the ball pit wrestling challenge, where Duncan was against Courtney and had the urge to truly fight back, he repeatedly whispered to himself, "Trent and Gwen... Trent and Gwen." This may mean that Duncan was unaware of the jealousy he caused Trent to have, and has actual respect for him.

The Aftermath: IV
When it was revealed that Duncan won the million dollars, Trent was shown cheering for him along with the other contestants.

Trivia

 * Their conflict began due to Duncan's friendship with Gwen while Trent was still in a relationship with her.