Do you have any tips in dating a theater kid, and not being jealous when the role is romantic? I get jealous easily,and he got cast in a main role, and I don't know if I can watch him for a whole show. It kills me, but I want to be supportive of him.

Yes. Find out why you're so insecure/jealous in the first place and eradicate it. This will not only help you out in your relationship but in the future.

The issue is not with your boyfriend or the fact that he was cast in a main role. It's you...and unfortunately issues like the one you have has been known to break down relationships.