I have been divorced several years. I no longer feel emotional sensitivities about my ex and the divorce. So why does my body close itself to the prospect of doing things that I used to do with my ex when I go on a date? I was not pro-mono as a youth. I would gladly have dated whoever caught my interest with only the worry of whether I would get caught. Why do I now avoid "cheating" even though I'm no longer in a relationship? It reminds me of the stories I've heard of amputees who feel their limb is still present. Is this a monogamy reflex?