I think a woman has natural intuition when there is something going on with a man seeing other woman. There are signs, too. When I was being cheated on he wasn't having sex with me as often any more and hardly at all. He drank and would give hints on how he was cheating, thinking I was too stupid to realize what he was doing. It's hard to forgive someone who doesn't even admit they made a mistake. I would not like my significant other seeing other women as friends even. That's just me.