1, in fact, you should not bury your happiness in a family without warmth because of your children.
2. How old is your child? Try asking him if he will complain about you or do something unacceptable if you are separated from your husband.
Talk to your husband sometime and see if you can reach some good agreements. Don't get entangled with each other because life is not happy enough. Let the other person go. At least we can find another partner when conditions are good.
An indifferent family may not bring happiness to children. Nowadays, children are very smart, but some children don't understand their parents' divorce and think that divorced children are unloved. This view must be erased for your children. On the contrary, if you are really divorced, you should give your children more care than love.