My Wife Has Displayed About 7 Of The 9 Symptoms

My wife has displayed about 7 of the 9 symptoms of bpd. Naturally she denies any of the things that I point out. I have filed for divorce, but she doesn't want to go through divorce. I went from the greatest thing since sliced bread to insecure paranoid nag. When I ask a question her answer is to repeat my question to me with sarcasm. Is that a sign of bpd