How do you feel about friends with benefits relationships? I used to be weirded out by them now they make sense to me because I don't think men are

Monogamous, some people is, some don´t.
IMO not gender related.

I had, long ago, a LTR that could be labeled as a FWB. An exclusive one, even so.
I think I wouldn´t get in that kind of relationship in any imaginable future. Not my choice.
But of course who knows.