Ok, there's this boy I like that's a Freshmen like me in high school & at the beginning of the year, I thought he was really annoying & as time went on, I realized that he was cute & I had a crush on him.

If he has a girlfriend already, he may not appreciate that kind of attention at the moment. Ты could just let him know that the 2 / 3 of Ты could be friends.

He could also be playing "Hard to Get". Now that he knows that Ты like him that way, he does not feel the need to be the chaser. I know these silly little games do create such a problem, but Ты could simply tell him that if he is not seeing anyone, then Ты are interested, and suggest an activity that the 2 of Ты could participate in. Not as a дата - but as a group of friends.

If he continues to act strange, Переместить onto someone else - really life is too short to be playing games. There are many guys out there that do not play games, and Ты would feel much better with. Do not allow any guy to make Ты feel bad about yourself - for any reason.

Try to spend time with him или observe to see what he's like, I'm not telling Ты to change yourself, just try to find similarities between Ты two, hopefully he will like Ты еще and will want to be with you. :)

Ok this isn't really an answer but just wanted to say I'm going through the exact same thing! Just at least your guy dosn't ignore you. :(