Is it okay to be Facebook friends with someone you dated in the past?

[musiqgem135]

Things were fine. We hadn't seen each other for most of the year, and hadn't spoken in 6th months. I happened to go to a pizza shop that he was having a gig at. He saw me and messaged me, we had a brief exchange, and then I decided to friend him on facebook.

But since then, I feel like a lot of my insecurities about my love life and him have come up again. I find myself hoping he'll call, that we'll actually hang out and catch up.

Should I defriend him? What can I do to truly let go of him? It seems he actually found love, and career and everything seems to be going well, and I suppose this just adds fuel to the fire that I wish I had someone in my life, and it's just not there.