handling break ups

Hello everyone
I've recently broke up with my boyfriend, he cheated on me with his ex girlfriend who also really disliked me too.
I found walking away from him really hard today, I know how much he struggles with his mental health to. But it doesn't excuse what he's done, my knees where shaking and I felt physically sick when I was told what had happened.
I want to move on quickly from this, and get on with my life, but I feel so angry, enraged, and stupid for thinking that he would change or see that he is being manipulated. Even when I had my own problems I tried really hard to help him and understand.
Has anyone been through a similar situation, how did they cope with it
My self esteem is so low at the moment

I dont know if you can move on quickly, only because I think you'll be going through the stages of grief.

If this relationship is toxic for you the absolute best thing you can do for you and your mental/physical well-being and self-esteem is to walk away and not look back. We dont know each other but I am super proud of you for taking this step for yourself... this is another opportunity to learn and grow and I wish you all the best

you have to remind yourself that you deserve better and that you dont deserve to be cheated on

Hi 26, sorry to hear of your troubles. Last summer, I split with someone, after about six years together. I used the opportunity to do some soul searching and deep, private emoting. The relationship wasn't very substantive to begin with. It had been depleting me for a long time, and allowing me to stay in a holding pattern of negativity about myself and him. I realize that one of the reasons we failed was because I was getting better. I was keeping a focus on myself and doing what I needed to do and his psychic whining was holding me back. He wanted it the sick way and could not make the adjustment. I bet this happens to a lot of people. I find that oftentimes, for many people, when they are fired, evicted, dumped, etc, it is usually for the best, and a period of improvement in their lives usually follows. It sure did for me. Being alone after you have been with someone can be incredibly cathartic and eye opening.