For me, there were several straws before the last show down. It started with miscommunication, then lies, disrespect and the final one was cheating followed by cruelty.
He told lies after lies then blamed every stress in his life on me. One example, he told me to stop cooking/cleaning for one week and just relax while he pampered me. Midweek, he got irriated and upset. When I asked why, he said I was slacking off and not helping out. And no, I'm not exaggerating. He was purposely setting me up. So I gained 5-8 lbs, and he told me it was very concerning. When I asked after years of knowing eachother if it mainly came down to my weight, he didn't answer and I took it as yes. Get this, all his exes that don't live in Texas are double to triple my size. I eat a lot but don't think I'm fat. He also bad mouth me to his friends/family. One incident he told me how much he loved me in the morning and came home acting like a jerk. When I called him out for his bad attitude and using me as a punching bag, he called me a bitch and I told him he was a jerk and walked away. Apparently, he took his sob story of being the victim and me going nutso on him for no reason to his friends and family (when he emphasized time after time for me not to do that to him). So, then they all thought I was looney and tried convincing him to leave me. When I found out, I confronted him and let him know his father didn't need to coach him on how to break up with me, and it was also very disrespectful to air only his side of the story to someone who never liked me. I also told him, the coaching was not necessary and he was always free to go whenever he liked as I've told him since the beginning. So I asked if he would like to proceed with the break up and he said no. This was followed by a few weeks of don't want me then want me. Why did I put up with it? Because I thought he was suffering from depression and wanted to be a good partner by sticking it out. He has a history and family history of mental disorder.
It got so bad to the point where he was cheating , even though I never caught him in the actual act but the evidence were all there. So, I told him that was it and couldn't be with someone I couldn't trust. I was upset and hurt for 2 weeks then got over it and decided it was time to move on. In the meanwhile, I was looking for another place and he told me with tears in his unholy eyes to take my time and he didn't want me to leave. After everything, I tried to leave on good terms but again, he had one of those days again and we got into an argument. I again, got blamed for everything given that I've always paid and did my share. Anyhow, he said a lot of cruel things, I cried of course. My last words to him was that after everything I supported him through and stood by him over the last 5-6 years, I would never forget how he cruel treated me. I didn't sleep that night, packed my stuff and moved out the very next day. He didn't apologize nor cared but that's ok. From that very day to everyday since, I've had no regrets. Though I made a poor choice in selecting this partner, I'm glad I made up for it by walking away like a big girl. Still wish him and hope he he's happy.