If this story is true, 7 years IS a long time. The only thing I don't get, like many others, is why this lack of sexual intimacy is such a big deal now and (presumably) has not been over the past 7 years? Or, has it been? Whatever the case, either get in counseling and try to work things out or get a divorce on the grounds of lack of intimacy or irreconcilable differences or whatever. I say skip the cheating unless you can get absolute permission from your spouse. I get that, maybe, you don't want to divorce for the sake of the child? That's honorable but doesn't necessarily help anyone in the long run.