Sorry but i couldn’t understand one thing. You loved some one and than you got married. Now you wana leave your husband but for what ?? … Is your ex still in the picture or is he married ?? Can you go back to him ?
Means whatever step you should take must make your situation better. Isn’t it. I don’t see any point in getting out of one hell and entering in to another one.
Or second option would be to stay single. Do you have any plan for that ? Means lets suppose you finally get over with you ex love, than what you gona do? … or even after that you will prefer to stay single.
So my only advice will be to look into all the options and plan a bit. If your current husband loves you and may be after 1-2 years you will be able to get over with your old love, than its worth a try. If not, than plan a little bit in advance. You won’t like to go back to where you started.