How do you stay married after your husband or wife has had an affair?

Time is what it will take. When someone has broken that bond of trust it's tough to get it back (if ever.) Communication is so very important (especially the second time around) and both of you need to spend some quality of time together and also touch base at least one hour in the evening. Talk about anything, or, if there are problems in your relationship and then learn to take each other's opinions and come to an amicable agreement. In time, if your husband is being a good boy, then you will learn to trust again, but, sorry to say your guard will never be down. No one likes to be made a fool of twice by the same person.