I think you have to earn your way out of a marriage. Particularly with this reason. It may be a very valid reason to dissolve the marriage, but I think you owe it to yourself and to your DH to do everything you possibly can to regain some of that connection that you previously had.
Truthfully I think all marriages go through similar things and that many people just give up too easily. I remember hearing an old married couple on Oprah once. they were asked what their secret to staying married for 50yrs was. Their reply "not falling out of love with each other at the same time". There is a lot of truth to this I think.
You need to get to reknow your hubby, start dating again, talk about your goals and desires out of life. It isn't good enough just waiting for him to change into whatever you are hoping / looking for. It won't matter what he does / doesn't do if you are not plugged into the marriage and actually 'want' to recapture whatever it is you feel is missing.
Marriage is so much more then 'love and romance'. It is a partnership, and it is a friendship. And just like any partnerships or friendship, they evolve and they change and the peopl in them change as do their expectations.
Like I said, it may be the end of the line for your relationship, but if that is the case you need to do everything you possibly can with 110% effort to try and keep the relationship. If you can honestly say YOU have tried absolutely everything possible, and do not want to be there; then you can move on. If you move on before this, then you are not giving yourself or you hubby the chance you deserve.

