Yikes! My fiance was like that at first around my ex husband, he's mellowed know though since we have been together so long. It's hard for that 2nd man in a womans life though. Especially if she has kids with the 1st. It feels like they are always competing with him for something he can never achieve. Sadly most guys aren't like mine and can't let it go once they realise...hey, she isn't with him anymore she's with you. Get over it! Anyhow, just take a deep breath when you're around this crap and try to move on (maybe next time, bring a good book to read)