If you want to be his "non-sexual" friend, then you shouldn't hook up with him. It sounds like you don't know what you want, which is adorable if you're the quirky, lovelorn, and conflicted lead character in a romantic comedy who can't decide whether she should give her heart to the dashing Lothario or the shy, quiet computer nerd.
But you're a person, and so is he, and your inability to keep what you want straight has probably cost you a friendship... at least for now. I'm afraid this advice comes to late. He's not talking to you because he's either hurt that you hook up with him, then push away. Or he's sick of not knowing which you is going to show up at any given time.
I usually suggest hooking up with friends. If only because a relationship is a friendship with orgasms. Getting involved with someone who started out as your friend is the best possible foundation for a relationship. Friendships are giggles and trust and watching Hulu and eating pizza. A relationship is giggles and trust, and watching Hulu and eating pizza, and taking showers together and having sex on the kitchen floor.
But you didn't know what you want. So, pretty much, you screwed up. You'll only get him back as a friend once some time has transpired. He does't know it, but he needs a rebound. Heal his bruised ego. And then once he's over you, then, maybe, the two of you can hang out again. But it won't be the same. That's the thing about life: we're always changing. Evolving. Growing.
And people either grow together or grow apart.
Next time, don't do that which you don't want to do, repeatedly. Who knows what the future will bring, Until that point, lesson learned? LESSON LEARNED! Onwards.