Put on your big boy pants and tell her to fuck off. Stop fucking her. Get a job or volunteer somewhere to allow your balls to drop back into their nutsack.
Be a man and stop whining about your life and do something. If she wants to bring the guy home then leave and go live with friends or relatives to show that you mean what you say.
Is your daughter with her or from your ex? If it's with her, then leave as above and let her be a single mom for awhile. If it's from your ex then bring the daughter and leave the bitch.
Moral of the story? Man up.
