I'm the woman/wife, my fiancé is the guy/husband and they didn't just have a fight. Bert blatantly told my SO that he manipulated my fiancé for over a decade, told him more lies than truths, tried to break his relationships off to everyone other than him (including me, multiple times) and was involved every time something bad happened in the life of my fiancé and me. If one of us three is a psychopath I'd say that'd be Bert. Maybe I didn't make that clear well enough in the post above. So that was my mistake, sorry.

I didn't have much to do with Bert, as I never liked him at all and my fiancé was sure that he was a good guy at heart, even though he sometimes did stupid things. Friendship can make us as blind as love can, I'd say.