Once kids come into the picture staying married is a sometimes more of a decision than a given.
If you do plan to stay married. Date. Talk. Take time.
If you go on a date and have a fight. Don’t worry. It’s normal, especially if you have not had a date in awhile. Take a break from looking for his mistakes. Women hate to be neglected and men hate to be hated but that can be a self feeding little cycle there. Try to stop disliking your mate and see what happens.