The ultimate betrayal

I committed the ultimate betrayal. I had an affair with a co-worker and then when I tried to admit it I couldn't and instead tried to kill myself. So I committed a double betrayal. I can give a lot of excuses to why I did it or try to blame being bipolar, I can blame it on the guy who pursued me, but in the end it was my decision and my mistake. What I'm here for is I'm hoping to get advice from people who have worked through this. My husband says he wants to remain married, so what can I do to show him how sorry I am, to prove it was a mistake but I love him and want to be with him. What can I do to help him heal? How can I build his confidence up? Because he is my priority right now. The affair is over, I quit my job so I won't ever see him again. But how can I help my husband. I know I will get some hate but I really need help to do what I can for him.

Thank you.