User blog comment:Gogogadget831/Why did Alejandro flirt with Gwen in TDAS?/@comment-1756703-20140108023946

Alejandro noticed how Heather and Jo were trying to win Gwen over, and so he wanted to get in on the action by attempting to lure Gwen into an alliance using his seductive charms.

Or at least that's what I think. TDAS had a lot of abortive mini-storylines that they just inexplicably dropped an episode or two later. >.>