On the flip side. How long did you feel like something was very very very wrong with your marriage/relationship before you finally called it quits?
Things had been deteriorating for about 4 years before I finally said enough was enough. Her actions told me that running around with friends meant more than making a home with me. It wasn't until 8 months after she "stepped out" (I found out right away - she told me) that I finally had enough.