How would you react to this?

Ok so I have this aunt, well my only aunt on my mom's side. She is like from mars or somewhere. The reason I say this is because she does not care about anyone but the men in her life. She has a mini baseball team and I don't get how she can put a man before any of her kids. Anyway all of my life I have been the one to take up her slack. I was the one who raised majority of her kids. In 06' I took 3 of her kids in and I bought them everything. I mean everything down to the pampers for the baby. I already had 2 kids of my own so imagine the stress. I was going to school(nursing clinicals) and working full time. I know it sounds like a lot but I believe in helping people. I didn't think twice about helping b/c those kids didn't have anyone else. So out of all of this, I ended up dropping out of school, quitting my job(I was going to quit anyway) cleaning out my savings, and so much more, just to support her kids. Anyway I felt she really appreciated it, eventhough she never express her appreciation. Ok so fast forward to 2007. I had some bad mess that happened to me, and I really needed her help. I had my moms help but we really have a small family. So when I asked her to help me, she looked at me like I had shit on my face. I was hurt at first but as time went by I got pissed. I expressed my feelings to my mom and I was like "mom am I wrong". I mean because i believe in checking yourself first before you check someone else. Anyway I just wanted the same kind of help from her that I gave to her over the 21yrs of my life. Yup I have been helping her dumb ass since I was 5. Anyway I stopped talking to her w/o an explanation. So she calls me and ask me to buy her some food. LMAO I mean are you effing serious? Anyway I told her no and she asked why. Let me just add : the way she asked me was like she was entitled to anything I had. lol
So I told ya know, I'm big on family. I thought you knew this since I was taking care of your kids when I was a little kid. I thought you knew this when I gave up a lot just to help you relocate. I mean rented a car, paid for gas, bought her family food on the way to where we were going, paid for them to be in a hotel, paid for them to move, got a loan so they can get started in my name for them. Yeah that's what kind of person I am. Anyway she was like whatever you was supposed to help. My kids needed you and it was your responsibility to get them.
What?!? Omg I slapped the spit from her mouth. Are you serious. You gots to be kidding me. Let's not talk about how you all of a sudden think you are better than everyone in the family because you have been clean for 2 yrs for ONCE in your life. Anyway just recently her oldest daughter needed help really bad. So as usual I pitched in to help, she comes up with this bogus mess about why she's not going to help. I mean damn do something for her one time in your life. Anyway I don't remember everything about what happened but i no longer talk to her. She does not have my number, she's not invited to any functions, she is just not in my life. I can't deal with her, she is selfish and retarted. She let men run her life and since I'm not an advocate for things of that nature, I chose to stay away. I cannot tell you how good I feel that I am not dealing with her. I was really stressing over how stupid she is and how she is treating the people who has always helped her. I kept to myself that I knew she was sleeping with my classmates from highschool, because I knew she would pretend she didn't know what I was talking about. She is so dirty, she slept with my father and my parents were married. It's just like i said , she is from planet mars.
Anyway how would you handle this type of family member?