All right so here's the deal:
I've been dating this guy for 3 years, recently I have just felt like everything he says just sort of bugs me.. like the things he talks about and his habits have started to annoy me.

There's this guy friend of mine that I have been talking to quite a bit, I've kind of picked up the hint that he likes me, and occasionally I find myself thinking about him... I know that's bad, and I feel really bad for thinking about another guy.

So my boyfriend, I know he loves me and I love him, my love might have faded a little I guess...

But I almost just don't really want to be around my boyfriend and when I'm with him he can tell that there's something bugging me because I'm quiet (this has been the last 3 days) but I just say I'm tired or don't feel good...

I am so confused about everything.
What do you think is going on with my head?

[We have been together since the end of grade 8 and are in grade 12 now.. if that might have anything to do with it.. ]

.. I don't even know how to talk to him about this.. I can't just be like "I find you annoying.."
I would feel so bad.. how do I bring this u

Being together since the 8th grade has a "great deal" to this with this. Neither of you has had the experience of going on dates with other people, or doing things girls and boys your age do! You are growing up, and you want to experience other things now. I think I would be concerned if you "didn't" want your space now.

Sit down with him and tell him that you don't want to hurt him, but that you need to go and explore what else is out there. You got together much too young, and although it's hard, this was bound to happen. You are both entering a different phase of your life, and you are seeing things through a different light now.

Soon you will be either be going off to college, or getting into the workforce. Your friends change, your living situation will change soon, and the two of you have just grown apart.

Tell him in the kindest way that you can, that you have just outgrown your relationship. You don't need to throw salt in the wound by telling him things that he does that bug you. That would just be hurtful and cruel.

Tell him that you never wanted to hurt him, but you think you are doing the best for both of you.

Good luck!