problem with Chase's character - is he 21?

I love Charlie David - I really do. I love Dante's Cove and I thought he was great in Four Letter Word.
However, I think he is really miscast as Chase. First, he's way too old for the role. Is he supposed to be an undergraduate? He's hot as hell but can he pass for 21? no way in hell. He talks about attending college in Four Letter Word but then, it works because you don't assume he's a traditional student.
Then, there is the problem with his best friend not knowing he's gay when he obviously is pretty "out." Chase's best friend seems shocked that he doesn't want to hit it with his girlfriend's pal. If they were mere acquaintances or if Chase was acting straight then, that would be one thing, but...
Then, there is the whole issue of Charlie David being pretty obviously gay. Don't get me wrong that is what I love about him, that he's so open, but when he has that moment where he compares gay to being a spy because nobody knows until you tell them, I laughed out loud. The character doesn't seem very straight to me (the haircut, the eyebrows). When his character wears abecrombie, he does not look like a college aged guy wearing it, but like some 30 year old gay mean wearing it.
The same reasons I love Charlie David as a hot openly gay thirty year old are the same reasons I don't feel he was right for this part.
I mean, was he talking to Thea Gill on the set of Dante's Cove and saying "you could play my mother" (not that she plays his mother per se but it's the same thing).
I'm sorry but he and Thea Gill look exactly the same age!