Married but looking............??

I am married but it is a loveless relationship. Due to the children we both want to stay in the marriage but want to find happiness also. What is a good site to find others in my situation?? Please spare me the moralistic jargon about the sanctity of marriage. I am a consenting adult looking for a site full of other consenting adults and will ignore any preaching from people bored in their own lives and therefore needing to p judgement upon mine. Thanks for your help!!