Believe me, I'm trying to see what I should take away from this, too. Maybe that masochism shouldn't be practiced?
I'd back off, but for your own sanity's sake as your primary goal. I wouldn't necessarily expect him to come running. It wouldn't surprise me if he doesn't rationalize your distance and reassure himself with this choice of celibacy. Then again, the opposite may be true. Don't be surprised if his storming back into your life comes in a very unsuspecting subtle manner. I don't want to see you hurt even more by this, so I just want you to prepare yourself for any turn of events.
This is what happened in my experience: We had a drag out fight that brought out some of our worst insulting tendencies mixed with some multi-lingual obscenities (she's German, I'm American), but we "resolved it". I wasn't about to chase after her after being called crazy or after being told that I can't speak my own language. (I'm an ESL teacher abroad) I didn't hear anything from her from early December until the end of March when I received a 1 line text from her saying that she missed me and my humor. (Mine tends to be dirty and filled with innuendo, too. I found that reassuring to hear you say that.) I wasn't sure if responding was the right thing to do, so I mulled the thought for a few days before answering simply, "how are you? I miss you, too."
That didn't get me an answer at all. I suspect I should have not answered at all as I didn't challenge her enough. The next contact I initiated at the end of May. I had just received a contingent job offer back home, and got an impulse to say goodbye. When I told her this, I got "Wow, you might leave? Cheers." I tried to extend the conversation, but got no further response. I'm not planning to contact her again.
This is more for my own sanity, not to illicit any kind of response from her. I suspect that I pushed her too far, but I can't stress this enough. If you knew the details of the things we'd confided in each other, "what do you want from me" didn't seem like it would be a show stopper and her nastiness caused me to walk away more than rejection. She insisted that it was all in my head and that it was purely my problem. I guess I took a brutal way of dealing with it as a result. If it was only in my head and only my problem, I decided that I wasn't going to go through it again and would do what was necessary to make sure I didn't cause it to happen again. Perhaps some sour grapes on my part, but I'm human, too.
Sorry for hijacking your thread. This has been quite comforting for what it's worth. That's what happened in my situation, so my hopes are that even if you don't go to the next level with him, that you can maintain friendship with him. It's such a waste of time and energy to let something like that slip away. I've often wondered if I wasn't projecting my own feelings into my situation causing it to cloud my judgment, too. It certainly didn't feel that way to me, or appear that way to others who saw us together. At the end of the day, it takes two to tango. If he's not willing (even if he DOES want to in some way large or small), there's not a heck of a lot anyone can do about it. It's ok to stay in this in between limbo stage, but don't stay there indefinitely. When you're ready, draw the line for yourself and make the decision to do what you need to. (God, am I talking to you or myself?)