Be careful where you tread and no "the grass is not always greener on the other side." Anyone after several years of marriage would be lying if they said they still felt that magic they did when they first met or were first married. Life happens and we have a lot on our shoulders in this modern age, so it stands to reason that we could feel like we want to run away from things, have a great romance of all times, or just be out on our own.
It's possible you really don't love your husband, but I do think you owe it to him and yourself to investigate this further. Why not try taking a 3 weeks vacation somewhere? If you can't afford to go far, then stay somewhere you feel at peace and think things over a little more. If you still feel the same when you come back, then you're going to have to sit down and tell your husband you want a divorce. Speaking of "sitting down" when was the last time either of you communicated your feelings to each other? If you think husbands are going to walk up to you and discuss your marriage then you are in for a shock. Most men stay as far away from a serious discussion with the woman they love because they know they'll never win. LOL
I've been married almost 34 years to a wonderful man. Our marriage isn't perfect and yes, we've argued, made up, argued some more. Sometimes I feel like packing my bags and leaving no forwarding address, but then I dust myself off and get back up. When I feel this way I think to myself, "If my husband left this house in the morning, got in an accident, died and I'd never see him again how would I feel?" I know exactly how I'd feel ... I love him! I'd be distraught and I'd probably never marry again. He's always been there for me and my friend, my lover and my partner in life. Anything worth having is never easy to attain and it always seems it's just a little out of reach. Most annoying.
I wish you luck hon. I know you aren't taking this decision lightly, but try for a 3 week separation before you do anything drastic and please, talk to him and express your feelings and let him have a chance to express his.
Good luck Marcy