Help w a boy...

Hey, I wanted to vent abt this matter, its about my classmates. A specific group of my class, about a group of six guys, these guys are surely not the nicest. They're pretty mean in general with anyone and definitely will overstep boundaries.

Normally I ignore these guys, because they dont really do anything to me besides some rude comments, but they dont pick on me too much like they do with the rest, so I dont really mind them. The thing is that one of the guys in this group, I have a crush on him, and I'm aware that he also likes me back, or thats I wanna think that since for a very long time I've seeing him observing me, I can feel his eyes on me practically, and he been... taking photos of me, for two years now, He would also ask his friends to take me photos too. At class, he and his friends always sit behind me, which I wouldn't care if it wasn't for the fact that i can hear them talking about me.. In such gross way. He won't say much about me, but his friends are so gross... They would talk for an hour about kissing me or anything with my body, sexually making fun of me or telling this guy about doing gross things to me (which he denies to do, luckily).

Thanks to most of their comments abt me, I really tend to avoid them or ignore them, all of them except this especific boy I like, he's shy, pretty introvert and a coward, too dependient of his friends opinions. I tried talking to him in the past but he avoids me, yet he's near every place I am. This really confuses me, and even if I tried to move on, I can't, I really like him for some weird reason yet I don't appreaciate his friends comment and surely I hate that he doesnt stand up for himself or stop the gross comments about me.

I've never talked to guys a lot because I was punched by a boy when I was in third grade so I kinda ignore guys my age or anyone that is a male, or I tend to be mean to guys most of the time. So I can't really tell what's the guy intentions... I would like someone else's opinion, most of my friends says that I shouldn't care much about this matter but is hard for me since i really wanna figure this issue out.

Plz Help!!!