I hope you are okay. It's hard enough to deal with a health issue on top of everything else going on. Just hold on and be strong.
As for your M. No M has ever fallen apart because of one person. DO NOT take all the blame for your H cheating on you. Everyone has problems with their M. But you DID NOT force him to go to another woman. That is his responsibility.
Plus the fact that he didn't bother to see you personally to see how you were doing re-enforces the idea that he's an @$$.
Heal thyself and then rebuild your home. He is not the top priority right now. You and your daughter are.
Don't worry we're all here to support you.
God bless.
M-43 W-40 2D - 9 and 5
Emotion, yet peace. Ignorance, yet knowledge. Passion, yet serenity. Chaos, yet harmony. Death, yet a new life.