Marriage is such a significant and important decision, and yet half of them end in failure and the ugliness after is something I wouldn't wish on my worst enemy.
You have to honest with how you feel. That is what you have to always, always do when you are involved with a serious relationship. No matter what your husband said to you, it didn't change how you felt, but you made the mistake of doing it anyway maybe just to temporarily fix things but it got you into some serious serious consequences. The longer it went on the worse you got, don't you agree? What makes you think that continuing to do that will work?
Do you even love the new guy? Or are you so desparate for an escape from this marriage you seem "hopelessly" bound to that you needed him to help you get out of this? You need to be on your own to really sort out your feelings, what you want, and stand on your own two feet. You've been hanging on to relationships your whole life it seems to me and it's gotten you nowhere but misery.
Stop sulking and feeling like a victim here when you have brought everything upon yourself more or less. You have to take responsibility for your actions and not expect somebody else to "save" you from this. You've been running and depending on others long enough. It's time to face the music.
Waking up next to a beautiful girl,
Step outside and say hello to my beautiful world.