My husband just informed me we're going to one of his highschool buddies gfs baby shower next…

My husband just informed me we're going to one of his highschool buddies gfs baby shower next weekend. I don't like him at all because he said the only reason my husband married me was because I was pregnant, funny thing is we were married a year before my first son was born Hahaha! But still it's the fact he said that. But he still likes him for some reason, he doesn't hang out with him because he knows I don't like him but I guess they are still acquaintances.. Anyways I don't even know this girl, what the hell should we even get her?