I get you Tim. A combination of three things could be the cause of all this trouble - of course, the typical teenage thing - that can get to anyone. Also, like I said - this course is a real S.O.B. for acedemic ability, which strains and stretches me. And finally, possibly the most effective one - I have Aspergers Syndrome - I'm a high functioning one, but it's there, and socialising is the biggest effected aspect for all people with this. I'm aware of much, which also may make it difficult - paranoia comes in.
I'm sure others have issues to deal with, so I'm only clarifying - not looking for attention or anything.
My main point is that this combination may be making me confused, it might not be that I don't love myself, if you get me. Now about the girl and what she has to offer - she seems like a rare catch, and is such a nice person that I can't see anything else but mutual trust developing, but yes, I do have to be careful like you said.