Marriage taught me the importance of keeping your mouth shut about your relationship. Early in the relationship when I was less emotionally stable, I used to tell people everything. I would cry and complain about my husband to my family and friends, only to find out later that they had no respect for me when I decided I wanted to stay married.
I learned to stop talking to folk. Especially unmarried folk. They don't know and never have anything positive or worthwhile to add.
Don't share your marital problems!