Hi Flower,
Trying to turn things around would only bring you right back to where you are now.
He has demonstrated some personality traits often attributed to sociopaths.
He lacks remorse, guilt or empathy.
He is manipulative and unabashedly disrespectful.
He would need to put in a lot of work on himself to become a person worth dating.
He has shown no signs that he even believes that he has a problem.
It is a lot easier for him to believe that you are the one with the problem and not him.
As long as he holds on to this belief, he will never make any effort to work on himself.
It wouldn’t be worth it to put in the effort to turn things around when you are involved with someone who will never put in the work to change themselves for the better.
You will only end up going around in circles and emotionally depleted.