I'm not physically repulsive, and I've had my share of men who are interested in me, but NO ONE, EVER, in my long marriage or during my relationship now, has in any way propositioned me. First, I spend time with people who respect relationships, and second, I don't play games or send out that fuck-me vibe, or even that, let's-pretend vibe. I have one close friend that I exchange some light sexualized banter with (he knows what I get up to and he's kink curious, so it's of the sssssspank me variety) but we've never come close to any kind of sex talk.
This is not to "blame the victim" if you are the hapless recipient of some boorish come-on. But I would certainly view that person as a potential threat to my relationship after that, and I wouldn't volunteer to spend private time with him. Not for fear of losing control of myself, or being raped or something, but just because that's not an appropriate way to talk to someone in a committed relationship and I'd want to be very careful about my signals.