I am so confused about boys... Guy 1: My first crush A junior.

I am so confused about boys...

Guy 1:
My first crush
A junior. He liked me. I liked him. But then he chose another girl over me.
and I got over him and I starter hanging around other guys. And he started looking like he was jealous and wasn't hanging around his girlfriend a lot.

Guy 2:
A creepy freshman.
He is a jock and stares at my front a lot. He makes a lot of rude comments toward me.

Guy 3:
A new junior.
He flirts with other girls, but then with me he acts... different. He carressed my face on purpose earlier. He says something to me everyday.

Guy 4:
One of my friend's Brother
He is a senior. He smiles at me in the hall and makes a funny face. He compliments me nonstop, and his sister calls him an introvert, but around me he doesn't shut up. He tells me little secrets about himself. I catch him staring at me quite often.

Me:
A sophmore. Never had a boyfriend. Or a real boy friend. The one I do have is half alien/girl. I wouldn't call myself pretty. I got called ugly once. A lot of people call me pretty, though. I cut myself everynow and then. I'm in the upper level classes, so you know, I'm a nerd. Boys confuse me. Socialization confuses me.

That's why I need your help.