I was faced with a situation where my (then) husband said he wanted to continue with our marriage but continue having relationships with other women. He didn't say he loved the other women (or me) but that was what he intended to do. He told me had come to believe that monogamy was unnatural and that evolution favored having multiple partners and that humans had a tradition of monogamy probably only due to influences like Christianity. He wasn't religious so he didn't feel beholden to religion to determine his behavior. He knew that having multiple partners was right and natural and he intended to follow that.

I thought about it for a while then told him I wasn't on board with his plan or ideas. When I had gotten married I had signed up for monogamy and that's what I still wanted. It never would have felt right or good to me to continue in the marriage with his open relationships with other women. (It was hard enough when he kept them hidden.) So we got divorced. Best decision I ever made!

I think it's important to know what you want and not bend too much on matters that are important to you. So no, I couldn't get over my partner loving or being with other women. It was unacceptable to me. Maybe if it happened once and then he realized it was not what he wanted, and ended the other relationship. Maybe then, with a lot of reassurances from him that were not BS but genuine, I could get over it. I don't know, because it didn't happen that way for me. I'm not exactly clear on how it happened for you either and if your husband continues to love and have a relationship with another woman. For me, if my partner is going to continue loving other women, hell no, I can't get over it and keep on that way. Marriage-ending event.