After 3.5 years of being together and a year and 4 months of being married, my husband has completely destroyed me and shattered my heart.

I'm bisexual and we had tried having a throuple with another woman before, it didn't work out, I didn't enjoy it so I didn't want to try it again. Fast forward to September, he and I finally got our own place to live, and he decides we're going to try a throuple again, this time with someone he went to school with. I didn't want to. I kept telling him no over and over again. But then all of a sudden one day he told me she was coming over and she never left because she didn't have anywhere else to go. I was weak, so I gave it my best shot instead of telling her to leave. I tried to make it work but I wasn't being treated equally from either of them and my boundaries weren't respected. Eventually problem after problem happened and she finally told me she didn't have feelings for me. I was sad, but I was fine with that. I gave my husband a choice me or her, because I wanted to stay with him but he was already in love with her and I couldn't stand to see him be in love with someone else especially after only 2.5 months. And he ended up choosing her. He kept saying he wanted both of us but that's not fair to me. I filed for divorce and moved out. I'm absolutely devastated and heartbroken. I was so in love with him, I can't believe he would do this to me. I keep trying to talk to him to make him understand how I feel but he's not interested in communication with me anymore. Oh and not to mention the week after I moved out, they found out she was pregnant and he sent me a picture of the pregnancy test. I had been trying to get pregnant by him for the entire 3.5 years we were together. Neither of them have shown any kind of sympathy or support or accountability or remorse. I literally can't believe this is my reality. I am so broken I don't know how to move forward with my life. I break down every single day and have dreams that we worked things out but I know it will never happen. I can't sleep well at night and I haven't been eating right, I've lost 10 pounds since I left and that's not normal for me to lose in just under a month.