You aren't locked down by kids and property. Sex drives are highest when you are young and before stress/kids.
If you aren't having the sex you love now, you need to part ways. It will NOT get better. Do you want that battle for the next 50 years?
Your partner can be your best friend. You can love each other. But if there is no sex/intimacy early, it won't come later!
(This post excludes trauma victims and some other small subsets)