Heartbroken. Trying to mend the broken piece

Ive been with my husband for nearly 9 yrs and have 2boys.nearly 2wks ago i found out hed been looking at a certain kind of site.this wasnt that bothered me.it was the fact he had added pics of himself to it and pretty much advertised for an affair.i feel like a part of me has been ripped out and im finding it hard at the min.a part of me feels empty and i feel mentally and emotionaly weak.he said he was stupid for doing it and hes sorry.we are trying to work things out but im still hurting.finding it hard.i dont know if il ever be able to trust him again.anyone else had this happen?i feel its all my fault.im overweight and feel its my fault he did what he did

I have not had this happen to me, but I know this must be terrible for you. To mend your relationship will take much time and effort, but I don't think this is your fault. He decided to act like an idiot, not you. But if there were problems in your marriage that led up to what he decided to do, try to discuss what went wrong and go from there. It is okay if you need time to heal. I wish you luck. TILES