I really liked him in the beginning of our relationship, but now it's kind of going down hill. I'm kind of getting annoyed of relationships. I don't like holding hands or him putting his arm around me. I like him but then I stop. What's happening? He's really in to me, and I don't want to break his heart. I just really liked us as bestfriends, never thought we would be something more. Please help, I really need some good advice right now.

Sounds like you are "growing out of love", when before you grew into it. It happens, and is normal.
Please be honest with him, and just simply tell him you have different feelings now. It does, sooner or later, happen to most of us. Meet some new people, be honest, respectful, and willing to talk about anything, and you will meet someone new. Good luck.

Its okay for feelings to change and you want something different, but at least be honest about it with him. Hurts, yeah. But only for a while until you both have moved beyond it.

It's common that your feeling of love to your boyfriend is changing all the time. It's up to many aspects.