25years has given you some very good DB based advice. Sandi2 has given you some good advice as well--they both write their explanations very well, too. If you follow it, you have a better chance of keeping your family intact, which is a beautiful thing.
Sad and Time's advice is likely to get you divorced.
If you want to know you did EVERYTHING--keep the path to reconciliation paved smoothly, as 25years said. Give it the fighting chance. It will be worth it.