Ladies! Need opinions!

Soooooo... I met my boyfriends friends on Saturday, it was like a double date. Anyways, his friend which is the wife was acting really weird around me (my boyfriend even said first that she was acting weird and seemed very nervous. She’s usually more outgoing and gives his dates a hug, she gave me a handshake), I just had a weird feeling about her. She’s already cheated on her husband and the funny thing is that her husband tried to get my boyfriend to sleep with his wife (before I became his girlfriend)(while they were still married cause apparently she’s a bitch to him and never gives him any) 🤷🏻‍♀️. So I just have this feeling that she’s into him because the way she was acting towards my boyfriend. She wasn’t really talking to me or anything. And I felt really uncomfortable because of everything. I don’t know if I’m just insecure, but I am jealous.

What do you ladies think???