Had a gf like this. She 'dumped' me because I seemingly stopped caring "which I did " no kids so no PPD, but same exact behavior as OPs fiancee. Now I get monthly calls about "you didn't come back begging, you never truly love me " etc. Woman I was sick of you, I could care less about ur problems since they are never ending and I'm still being nice about it. People like this just think they deserve constant attention and their entire world breaks down when they no longer have it.