Well... EVERYONE brings imperfections and problems to a marriage. That's completely normal. But don't think it's completely your fault or even that if you had done things better this wouldn't have happened. You could have been the perfect wife and it still might have happened.
But that doesn't mean there's never room for improvement. When looking back and seeing areas to improve, focus on those. Read books on relationships, read books on men, read books on marriage. You can take the time now to make sure you will have a lot of great stuff to contribute to whatever realtionships you enter.
Of course, you'll never convince your husband of this... he has to figure that out on his own. But start working on this now so you'll be prepared wherever the future leads. Make sure that whatever guy gets you in the future, he's going to feel very lucky.
By the way.... a fun book to read is "Revenge of the Middle Age Housewife" and "Wives Behaving Badly" by the same author.
My sitch... well... it's kind of a long story.... but to answer your questions... my husband did move out, he filed for divorce and we were in divorce proceedings for about 6 or 7 months.
