Well I was thinking, something like in the first high school musical movie, they made it look as thought the boy wasn't serious about the girl and the girl found out. Complications usually start with trust issues, so whether the girl sees him with some slutty girl or if your looking for another way to do it. Maybe the slutty girl has her hands all over the boy and the girl finds them then she asks what was going on and the boy says nothing but the girl is suspicious and you could then do the boys POV and he could have been freaking out cuz he doesn't want the girl to think that he's cheeting on her.
