Are Mood Swings And Suspicious Behaviour Symptoms Of A Personality Disorder?

my ex husband was moody,somtimes emotionally unavailable, suspicious,and would accuse me of things or events that happened months or even years ago. he said I had sex with his brother and I ask him were he heard that? he said from his brother. So I called his brother in Colorado and ask what the heck was going on he said he never said that. which I believe because we didn t. there is more but my question to you is it possible he has a personality disorder. I m in the prossess of trying to get an annulment from the Catholic Church