You feel like vomiting? I feel like vomiting! I kid, but not really. Your man is doing something wrong. No, not dating a fleet of prostitutes, though it is highly suspect, but by dragging his exs front and center into your life. It’s a nasty move that is often done with the express function of making you feel like sh*t. Insecure, less-than, inferior. Or, as you say: pond scum. I don’t care if he only mentioned one girlfriend he had in the past who was a 300lb garbage collector or an 80lb quadriplegic or Giselle Bundchen. If he misses her so much then clearly he isn’t ready to move on.
You need to draw a line in the sand. On one side is a new beginning where he not only accepts who you are, but values it deeply. That is the land of healthy and positive. That’s where you need to live. If he is capable of joining you, great. If not, he needs to live on the other side of that line. A place filled with self-involved insecurity, aggression and nastiness — without you. Got it?