Thanks to everyone reading in advance. I’m new to this sub and was searching for a while where to post this but after reading a little it seems you all seem fair and super supportive.

To be fair and get an honest opinion I must be totally truthful.

We will be together 10 years this March and we have a beautiful 4 month old baby girl that we both dote on. I spend most time with her because he works away as in FIFO and he has never failed to be a great provider( even when he lost his job for 5 months he had enough to pay his half with savings). We didn’t meet under the best of circumstances but we quickly hit it off and in the beginning it was amazing till my depression got in the way and I made everything hard for him. I don’t blame either of us for this he was always the type to say that if I have a problem just say so. The problem now is in the beginning we were much closer emotionally and sexually. I made so much effort back then, I had 6 costumes ($100plus) each and he even surprised me with a matching one a week later. I bought a video camera but he wasn’t interested so never used it. To say I was into a lot of things and really open back then would be an understatement. We went to a party and I’m ashamed to say I cheated on him by making out with another woman that night. He left me there and I didn’t blame him and felt horrible . But he forgave me for that and so we moved on.

Now we have really settled, bought a house had a baby and now he can’t stop going on and on about how he wants to have a three way or see me with another man which I to be honest find absolutely disgusting at this point. I feel like I’ve far from moved on from any feelings in that regard I ever had and my life is now based around my daughter. I’m not not sure how to approach him to say it in a way that will get him to stop mentioning this anymore because it’s simply not happening.