How do I deal with the quiet moments?

My boyfriend of a year and half and I just broke up. It was painfully mutual. He was my first "true love" and I care for him more deeply than anyone that came before him. There had been things going on that neither of liked and, even though we talked about it, it never got better. After a long talk we both agreed that it would be best if we split. It pained us both, but I know it is for the best. We decided to remain friends. Neither of us want the other person out of their life. We were great as friends, but the pressures of a relationship (among other things) drove us apart.

I have cried on and off all weekend and I know that he has been hurting. Today, three days after the break up, we saw each other at a friend's house. Nothing happened. There were no tears, no "what if" conversations. It was like nothing had happened, which is good and bad. Good because we are in a place that isn't dark, but bad because he was distant towards me when others were around.

My question to all of you who have gone through this is, how do I deal with the quiet moments? I was fine for most of the weekend. My friends cheered me up and I was kept busy. But it's when I'm by myself that it all sinks in. I think that I'm never going to kiss him again. There will be no more soft touches. No more nights sleeping next to each other on a mattress that is too small for two people. And when I think this way...I break.

I know that I'm going to hurt for a while. I accept that. But I also know I will heal. That there is someone out there for both of us and that we will be truly happy one day. But until then I need help. I need these quiet moments to not hurt so much.