Honestly, if I was in a relationship, I wouldn't care if my partner was sleeping with other guys, as long as I was her priority and she kept the emotional stuff for me.

I don't see the point of being completely closed off to one person. I don't have enough trust and faith in people to spend my whole life with one woman without expecting her to hurt or abandon me later on down the line. I would rather play it safe and go with an open relationship. Besides, it's unnatural to sleep with only one person your whole life.

So yes, I would forgive, so long as I was kept a priority.