What Caused Her to Leave Him?

Obviously loss of attraction and lessening of chemistry are major causes for breakups. However, if he turns into a couch potato and allows her to make all the important decisions, she'll conclude that she doesn't love or respect the "wimp." So here are the big 4 reasons you may be dumped.
1- Don't be a wuss. She'll lose all respect for you.
2-Don't be boring or predictable. She craves creativity and excitement.
3-Pause before saying or doing what you've always said or done. In Seinfeld, George Costanza , the loser, did the opposite of what he normally did and became successful with women.
4- Try to be creative, adventurous, funny, passionate and romantic. You gotta work at it. Women will sense your lack of interest in them.