What does it mean when a guy wants all your attention for him only?

[Milania88]

Why does my crush afraid or don't want me seeing his friends. when I look at other boys he looks at me and sometimes he stares at me and wants me to notice him, he tires hard to get all my attention to him only and his friends help him and they act silly or rude with me, one a day I look at one of his classmates and I ingore him and then I see this guy became his best friend, he chase me in public places and we make eye contact in front of all people (he doesn't care) specially when he sees guys flirting with me and when I ingore him he filters with me a lot, but he tires hard to noticed the world I and him there is something between me and him!!

[SnowedIn]

Because teen boys are petrified that you'll see another boy and ditch the first one for the second one. On the one hand this is normal and part of him growing up. On the other hand it's really bad: it's early controlling. Don't give in. Keep being friends with people of both genders. Don't ever let a crush or a boyfriend dictate who you can be friends with (or dictate anything else). If they try to tell what you can and cannot do or who you can and cannot be with, ditch them.

[Milania88]

Does it mean he likes me? and he is jealous?

[SnowedIn]

I think yes he likes you. It might be jealousy but sometimes it's not that just wanting to control.