His fiancée seems so controlling

So my husband had a good friend who has a new fiancee who is controlling and completely changing him.

She get extremely jealous of my husband and her fiancés friendship and I find that weird. We all hang out and my husband and her fiancée goof around like always nothing bad just being funny. And she seriously gets pissed and tells him she hates how he acts like a fucking idiot around his friend. I personally think they are just being boys having fun but she can’t stand it. When they goof around it’s nothing about women or disrespectful to her in anyway.

Over the last 6 month he has been changing and becoming boring and serious all the time and both me and my husband have noticed. We are both assuming it’s because she been putting him down calling him stupid and a idiot when he is actually being funny and fun hanging out with his friends.

It’s starting to get to the point that we actually don’t enjoy hanging out with them because they aren’t fun to spend time with anymore. Has anyone ever dealt with this before?