Thursday night anger

Okay, so I don't know how to put all this. I have a person in my life, I can't call her a friend because, well, she abuses the fact I have money and she doesn't. I started hanging out with this person in high school back then everything was fine, no problem. We graduate and she has a job and gets me a job by talking to her boss. Two years later that boss left and in comes a new boss and said friend can't do anything right and she gets fired. She has since been in and out of jobs for years. No steady income whatsoever. I find a new job and I make good money. Well I help her get a job because you know she did help me before. She stays there for literally six months and begins to constantly call-in and not show up for work. She gets fired again. Well, she finds more work but nothing sticks. My other friend that I adore and love moves out of state, and I go through one of the roughest parts in my life. I got into an abusive relationship and was made to believe it was ok because he said he loved me and I didn't want to be alone. When things are literally burning I that relationship I turn to the jobless friend who also abuses me, for money. But I feel I should hang out with her because no one else could physically be there for me. She at the time was in a relationship herself. I paid for everything. For both of them. Did I get a thank you? A kiss my ass? Anything? No, the one time I didn't bring HER boyfriend home something to eat I get yelled at. Fast forward to now her boyfriend is now her ex she's had several "pregnancy" scares and I'm emotionally done. I feel bad but honestly how can I help someone who refuses to help themselves. Maybe I'm being petty. Maybe I am cold hearted. But my bank account is nearly empty because she believes when we go somewhere I've got it. Like all I wanted was a friend, but it feels like I'm giving her child support. She currently lives in a house with her dad, her brother and his fiancé and their two kids, and several animals. The entire back part of the house has black mold in it. She won't tell the landlord because god forbid he inspect the very nasty, neglected, boarder line condemned house. They only have one car so she says she can't get a job until she fixes her car. But how will that car get fixed with zero cash flow. I should call dhr because those kids should not have to live in a house full of black mold and starving because they have no money and no way to get groceries. Maybe it's none of my business I just feel so bad and so grossed out all at once.