User blog comment:Jam7/Thoughts on the new episode.../@comment-1756703-20100611080332

That's exactly it. Tyler noticed Lindsay swooning over Alejandro, and he got jealous and tried to impress her as well. He tried doing a cartwheel for her, but given that it's Tyler, I'll let you guess how well that athletic display went.

I think she'll end up with Tyler in the end though, don't worry!