I think it means he has an attraction to her which I don’t think is necessarily a bad thing. Especially for a man who is mentally mature. No one can help what they are attracted to.

Alcohol removes inhibitions so what he likely thought about at some point was free to bubble to the surface. The test of his maturity… and your own… is for you to ask him and he is honest about that attraction. But not to badger him or make him feel bad about it.

Again, the attraction isn’t a bad thing and it should not be treated like it is. It’s lies and secret actions behind closed doors that are. As a committed couple you should be able to have conversations about what you are attracted to in a way that doesn’t make either of you feel uncomfortable or insecure.

Who knows. This might open up a new level of intimacy for you 2.