Sorry to hear you've hit a rough patch. The wife and I are currently at a crossroads. We've grown apart, have very little in common (except for the kids, which is huge) and don't particularly like each other any more. I know where I come up short and am willing to give it my all, but my gut tells me I'm only here for the kids and finances. I know I'll never marry again. Never live with another woman either. I never again want to be responsible for someone elses happiness/entertainment save for my kids. I make far more money than her and don't want my kids to be deprived of anything. Best of luck to you in all areas of your life.
You are not responsible for someone else's happiness. It is also not your obligation to entertain others, if you don't desire to. Anyway, how can you convincingly do this, if your heart isn't in it?
To state that you'll never marry or even live with another woman again is very telling about your present situation. You are in a bad place if you honestly feel this way. Never say never.
Everyone "comes up short" occasionally. We're human; humans aren't infallible. In a relationship, each party should be willing to give !00%. Remember willingness is not the same as accomplishment. Your gut feelings are what you believe is expected of you. Obligations alone cannot be a reason to stay in an unhappy relationship.
I feel extremely lucky to have enjoyed 52 years of marriage to a wonderful woman. We had rough times, just like most folks do. If I were able to live my life over, I'd want to do it with my late wife by my side and I'd try to be a better husband than I was. My son and daughter found wonderful life partners and are enjoying their long term marriages. -Son's been married for nearly 30 years and my daughter for 24. None of my friends or siblings stayed married to their original spouses. My sister is working on her 5th marriage.