I like the conversational tone to this piece - what you are saying to you ex who is now a part of your life.
Now, why would you want him back if he's changed for the worse and doesn't know what love is? Just a thought, but yea.
I don't think you should write more. I don't edit many of mine again, just because it destroys something and I've usually moved on with something else and cannot bring that particular feeling back anyway.
This one is good, I've gotten a couple different ways of reading it in my head. But I'll ask for once, should I interpret it as:
1 voice, other conversation unheard 2 voices, both revealed (and of course obfuscated at the same time by their mixing)
It might seem silly to think that I could write a perfectly good review from either perspective, and I'm half expecting the answer of "do both", but ask a courtesy for the sake of my time. While waiting for an answer I review yet another one!