I had a very mentally abusive relationship before my fiancée. And every once in awhile I have days…

I had a very mentally abusive relationship before my fiancée. And every once in awhile I have days where I think about it and I get very bad anxiety. I can't even see this persons name without it making me sick. And my fiancée has been so understanding of it. And he's really the only who knows what my ex did to me. And I was pregnant though it with my Daughter. So now with this pregnancy I if something happens and it reminds me of that relationship I get really down. And I feel so bad for my fiancée. Because It still effects me more then it should.