There’s a kid involved and unfortunately, I don’t think it’s a good solution to end it with him. Are there any good parts of your relationship?

I suggest pushing therapy, forcing good communication and trying to solve it. If these are the only bad parts of your relationship and the rest is good, because of the child you share, it’s not the best solution to end it.

As for your sex issue, all advice I can give is get sex toys, find out what you like, bring spice into the bedroom while still trying to respect his (as bad as they are) boundaries. Try something new, get outfits.

If he’s not going to put in effort, do it for the both of you. Be happy, bubbly and charismatic. It might trigger him to want to be happy too and work harder. I suggest doing all you can to make it work. The alternative is no better and you’re not guaranteed to find a partner that doesn’t drink, smoke or watch porn after him. The chances of that happening is actually very rare. Try work with what you have, it doesn’t sound completely hopeless from my point of view.