I think a lot of persons consider the friendly and comfortable relationship they develop with their ex to be love. To me it is not love but finally respecting and caring for each other as friends and parents after all the hurt and pain that happended as part of the D. OK, maybe it is love, but not as husband and wife.
I have to think that there was a mayor reason(s) the two of you divorced. Well, those reasons just did not go away and there is a lot of water under the bridge now. Maybe he is also jealous, and maybe you are glad he is jealous. It could be a game the two are you are playing, with your new H in the middle.
If I were you I would count my blessings with have a caring relationship with my ex, and not blow your current M.
