1.You get caught up in a trust - doubt neverending cycle for the rest of your life living an unsecure life
2.If you don't want to deal with it, just walk out- your decision.
3.Love him so much and so unconditionally - that he sees what he is not valuing enough - no questions asked and no doubt entertained- take what he says at face value - unless you are proved wrong or you know for a fact he is cheatin again-
You'll know instinctively when to move on..
But what ever you choose, don't spend the rest of your life killing your self with suspicion! Not worth it and not healthy for you, you marriage or your kids.