I'll go first...I married a man who on paper was a good fit. He was smart, had a steady job, drove a car, had a degree, read books, had interests, and was okay looking.
He never 'grabbed' my attention but I had years of failed relationships, with unsuitable men and it felt a bit 'now or never' in terms of having a child, a marriage and all the trappings of modern life.
I was so bored, so fed up, so 'blah'. We had a child together and he was an indifferent father, so after 8 years of utter boredom I left, took my son with me and have never been more scared or happier all at the same time.