another year... another chance? Options

[expoised]

the guy i like this year happens to be the same guy i liked last year.

the thing is... last year, towards the end of spring semester, he started acting like a complete a-hole. i didn't know why... he just did.

this year, it seems all different. he's so nice and sweet and it's like he's a completely different person. my friends keep telling me that i have a really good chance with him. i asked him in the beginning of the year if he ever heard a rumor that i liked him last year, and he said "no".

that turned out to be a lie. his friend told me that he knew ever since after spring break... and i believe him.

so... last year, i liked him, he found out, and he started being a complete ass.

this year... i like him again... he doesn't know. he hasn't changed, i haven't changed... do you think if he finds out, he'll act like an idiot again? that's probably a sign that he doesn't like me at all. should i just give up completely on him?