Another unfortunate thing I've learned the hard way is that even if he comes clean and you forgive him, it's highly likely you'll find yourself in the same scenario again in the future. I know it sounds cliche...but if he's cheated on you once.... He'll do it again. I'm sure he feel guilty, if he has an ounce of humanity in him, of course he will feel guilty. But unfortunately guilt doesn't always stop the behavior.

I gave my ex multiple chances after screwing up and things never got better, they just continued to deteriorate even more every time I forgave him for doing something stupid he lost respect for me and he eventually left me anyways and married the woman he was cheating on me with.

I totally understand wanting to keep your family together. I tried so hard to keep mine together wih my first marriage. I forgave him for unforgivable things and I learned that even if he was willing to give it another shot...in the long run he still wanted to leave and the time during that last effort was miserable.

It's hard to let go, but in my experience once one partner in general marriage has gotten to the point where they're acting like your husband is things will never be the same. If he stays he will become even more resentful and eventually leave anyways but if you let go it will be painful for a while but then you can rebuild and find happiness again.