First of this isn't a complaining post, its me seeking advice. 

Ive been married to my wife for a yr now. And shes been recently diagnosed with BPD. My question to this community is insecurities. My wife will randomly bring up ex-girlfriends and start to get frustrated with me saying she doesn't have their personality or look the same way or whatever it is she brings up at that time. 

I tried to comfort her with it i chose you I love you you're my wife. Im not going to leave. I say things i love about her.  But sometimes its not enough and it leads to arguements. 

Is there any advice i could get to help with this. Maybe even just understandimg her perspective could help?

