Most Helpful Guy
I'd let her (no-contact) flirt with other guys, but not sleep with them. She is also free to flirt with women, and should feel free to sleep with them as well. That's pretty much my boundaries.
But that's just in general. The specifics would depend on the nature of our relationship. I. e. if we were 'swingers,' of course I wouldn't object to her sleeping with another guy, as long as I got to sleep with his significant other as well. But there are only certain types of girls that I would be comfortable having this kind of relationship, and only certain types of couples that I would be comfortable "spouse swapping" with. So, it's all subjective, really..
Most Helpful Girl
Flirting and sleeping with someone are very different things. Lol I wouldn't be happy if my partner flirted with someone else but I would just talk to him about it, it wouldn't be a deal-breaker. Sleeping with someone else is cheating and I will never tolerate that.
That doesn't mean I'm possessive or "crazy jealous" either. It just means I prefer monogamy and will not settle for anything other than a faithful partner. If someone wants to sleep with other people, they should be in an open relationship and I'm not the type of person who would want to be in a relationship like that.