I have a friend who is finally accepting that his wife has symptoms of bpd. I feel he was rushed and pressured into marriage due to conceiving a child out of wedlock, which means they barely knew each other when they got married. 

Fast forward a year and things have escalated from emotional abuse and suicide threats to physical abuse and taking their child and disappearing and threats of abandoning their child in order to go out and party. There are good times, however he is exhausted, depressed and scared - tip toeing his way around day to day ensuring he does everything 100% lest he set something off.

Things blew up over Christmas and the in-laws were involved. Threats of physical harm were dished out amongst angry words, all the while the 18 month old child crying in the middle of it all. 

From what I gather the physical and emotional abuse has been on going. As a friend all I have said is that no one should be subjected to any type of abuse - no matter what their illness. He worries for the wellness of his child and the fallout if he decides he wants out of the relationship. 

Is there any other advice I could offer? 