Me and my partner have been together for 6 years, engaged for 2, him and his ex broke up 10 years ago and were only together a few months. In those 10 years she dated one of his friends for a year, had a talking stage with another and now she's pregnant to another. My partner is annoyed she's pregnant and is acting like she's going out of her way to get back at him. From what I've seen and heard it's his friends who are actively pursuing her. His bestfriend who had a talking stage with her even told his partner, now wife, that he finds her more attractive and still has some feelings for her just before his wedding. His friend who got her pregnant maintained a friendship with the ex behind my partners back for the past 10 years and the pregnancy was the result of a drunken one night stand. She's also been married with a child and since divorced. My partner is adamant she's pregnant on purpose, to spite him. It's upsetting me how he's behaving about this situation. Does him being upset about this make sense to anyone else?