I did the same as you, Leed. Stayed in a miserable marriage for 20 years, thinking it was best for my daughter, who revealed to me after the fact that it would have been better to have chosen otherwise.
I am happy to hear that you had a short but happy marriage after your first unhappy one. I never found that, and the dating was disastrous, till finally a lightbulb came on, and I decided to try a different (more peaceful) path.
As I said earlier, I applaud anyone who strives for happiness with a partner, and truly finds it, like KathyM!

Patty