Would you like it, accept it, or don't accept it? I am talking about some dance like salsa dancing.
I just met a beautifull girl (will not send pics...) and she tells me she likes to dance salsa and some other of those dances. I don't like to invest my time in dancing like that, but as a joke I told her that I better start practicing in that case, since it is not something I would like to watch from the side. I am sure many men will be interested in dancing with her.
When you look at the internet many people say that you should accept your partner dancing with others and don't be insecure if you trust your partner etc.. But in that case I rather look for some nice girl that likes to run or something like that, because I don't like to cheer from the sidelines when my girlfriend/wife is dancing with other men.
What's she getting out of it? One on one attention and close physical contact. If she really needs that kind of touch and interaction, hey, that's her choice, and it's a context she might be used to non-sexually (maybe that's possible, maybe that's a thing, even though, for thousands of years males and females dancing one-on-one has been a part of courting, it's in our ancestral DNA to think of it that way at least a bit). Anyway, suppose it's something she somehow sees as non sexual, okay, I bet there is a context in which, a male (you), has a non-sexual environment and women are crossing the line with you and you don't see it that way. She'll have her "no! That's not okay!" contexts even if they are harmless to you. If she finds those spots where women are, in her eyes, inappropriate with you, even if they aren't (or maybe they are), she just might get some empathy.
It's called recognizing each other. If you want to be with that person, you give some things up because you know you are getting something more back. She might realize having strange men touch her is less important than having you, and, by contrast, you might realize, you aren't benefiting from female attention in contexts you see as non-threatening but she sees as threatening, and you make adjustments.
If the relationship is worth it. It's not some insecure, control thing, it's just that each individual has values and principles they bring into a relationship. It becomes unhealthy if it's one-way and not worth it, but if it is worth it for both and they both want to change for each other, fuck anyone who judges them.