One of the main reasons I never married is because I was asked out by so many married men. I quickly learned to look for the tan line on the ring finger. But often, the men did not even bother to hide that they were married. When they'd ask me out and I'd say, "But you're married!" they'd respond, "So what?" I felt sorry for their wives and figured if I got married, I'd just be one more wife being cheated on.
I had the same experience when I was young, and I reached the same conclusion that you did. I felt sorry for their wives, too, and I worried that, if I did marry, I could end up in the same position.
I did marry, though, and sure enough, I ended up becoming one of those wives, just as I'd feared.
There are good husbands who are devoted to their wives. I do wonder sometimes if they represent a small minority, though. lol