Again to quote my therapist: it’s a waste of your time to try understanding why people do or say things. We might never get an answer. You can only try understanding why “you” do or say things.

I’d take shift of who HE loved more or if he even loved you at all and focus on
why YOU cant let him go. Why instead of enjoying new relationship you worry about exes (if one loved you more than other women or if the other one is jealous when he sees you with someone new -at a concert).

Why are you giving exes so much thought? What does your therapist say about this?