Had sex with whom? Your ex?

If with your soon to be ex, you need to end it with the current guy or at least fess up to him. If I dated or even just slept with someone, I’d need to know that they still sleep with their ex/soon to be ex. One of my oldest friends had that happened to her. She was dating this guy who turned out was still sleeping with his ex wife. She had no idea! I heard of other people doing that. Sleeping with exes or soon to be exes. I mean it’s your choice, but you need to be up front with your other partners/boyfriends etc