@Cinebar
I have seen a similar incident with The premade couple Brent and Brant (?). When C&D had recently come out (So sometime back) My female sim had just married her husband (I had they do some sort of reception afterward) and she was really good friends with one of them I believe it was Brant. So he brought his hubby as a plus one. She started chatting it up with Brent to get to know her close friends' husband and then he, Brent, starts to flirt with her. As far as I knew he was supposed to be gay and I'm thinking why is he flirting with the new bride (an obvious female) and on her wedding day, not only that but also in front of her husband and his husband... Let's just say, despite her distaste in him flirting it ruined her relationship with her new husband even though she didn't initiate it AND she denied him.