| | Re: No sexual spark for a partner, then what?
I think if you want to keep the relationship, you need to actively work on the sex. Try Sinclair Institute, Better Sex Video Series, Sexplorations video set. Mine's in mint condition, ordered it for me and my buddy, because I promised him we would get to the good stuff. Unfortunately he had a brain hemorrhage and it arrived a week after that. My social worker recommended it to me when I had issues with my ex, and needed to learn what good sex was all about. I had a copy but then threw it away when I figured out that we never had good sex that was emotionally connected, and that he'd been cheating on me and that it was an abusive relationship. Hence ordering the second copy for a better purpose, lol.
Anyway, if you want better sex, you have to make it a priority project and put in your time. The video series will give you a lot of ideas. It seems that the key is communication and also being open to different ideas and giving space for imperfection while you are experimenting to see what works better for you as a couple in terms of communication and connection (literally and figuratively.) If you get along well out of bed, and both want to make better sex a priority, you are way ahead of the game. Slow gains are still gains, and you are unlikely to lose them over the years, but add to them.
You don't say how long you've been together. But probably this approach is easier than divorce as an option, at least in the outset. Then you can say you really tried and gave it a good effort. And even if you divorce you will have a takeaway which is knowing more about couple sex, to make a better judgement next time around about what it is that is really going to do it for you sexually.