Help... again!

I post too much on this certain forum. Bah.

Anyway, lately ( Since about Friday last week ), my boyfriend has been angry at me for a reason that he's admitted he's forgotten ( but he doesn't want to let go of it "just like that" ), and I don't even know what it was cuz all I remember from when he was first getting mad was over an online game.

I haven't been talking to him very much lately, since I've been told to just give him space, but when I do talk to him, I'd ask the normal things like "How are you?" "How did you sleep?" "How was school?"
"ok" "ok" "f**king gay im leaving" and he would log off.
He never responds to me when I tell him I love him or anything else he would usually respond to.

Everyone is telling me to dump him, but I really don't know if I could or if I should just hold on and hope for a change. I mean, I love the guy but the way he's treating me, it's like he doesn't love me. I'm really scared to lose him, and I can't really tell him how I feel cuz he'll get angry at me.
I tried telling him on Monday night that I'm afraid of losing him cuz of the way he's acting and he got angry at me for thinking negatively, and then hung up.

I'm pretty sure this is an abusive relationship, but I don't want to just leave him.
Help me please! T_T

( Oh and this is an online relationship so I'm limited in the things I can do. If this was a "normal"(for lack of a better term), I wouldn't really need to ask for help... but yeah it's not so help please.. )