I'm working on getting promoted so I can leave my partner. I don't want to depend on him for anything. I want to be able to take care of me and my kids on my own.
You said that you are working hard to get away from this man.  Why would you do that?
You should know that I'm not the kind of person to let others support me.
If you are planning on leaving someone, it is good to have a plan in place so that you can take care of your children.  It's okay to want to be self-sufficient, especially if you are unhappy in a relationship, but if you still love this man, you shouldn't feel bad if he tries to help you.
He doesn't love me, he's a loser and I can do better on my own.
If you think you can do better on your own, then maybe you should leave him now. You already have a job, and you shouldn't stay with a partner who doesn't love you just because you need the money.