I completely agree. I've had similar experience with a past gf. Met in college, became great friends. Dated for a brief moment, but noticed that it was a one sided street. She often take advantage of me and seemed as friends to want to hang out with me when she needed a friend to talk to, was bored or hungry as I saved my college grants for school, while she blew her grants on clothes and concerts with her friends. I remember my family fighting once and I just needed a friend to talk to. I ask her if If we can hang out for a bit and talk as I was going through something. She agreed that it would be no problem and would like to hang out. I get there and as soon as I started to speak to her she receives a call. She takes it, I figure she would let them know that she could talk or would call back later. She talks on the phone for, I kid you not 30 minutes in front of me. I obviously pick up the vibe that she didn't care and had no manners or atleast let me know"hey this is an important call, so I might talk for a bit". So I just walked out of her room and left. Her brother was in the living room, I tell him bye and left. I hear her running from her upstairs room and I just walked sadly to my car and left.

  I realized that she was not the type of person that I would want as a friend in my life. I spoke to her in person a week later and told her honestly and respectfully that I couldn't count on her as a friend and explained my self numerous examples of how I felt. I asked her what she thought, or if she thought differently,  and she just said no. I kindly told her that I wasn't mad or anything, but just felt like I was treated unfairly as a friend  and was not attacking her. We hugged and we didn't talk for about a year and a half. Thats until she messaged me on Facebook reaching out to me saying that she was sorry about how she treated me in the past and could hope that we could hang out again. I thought about it for a moment and had no ill will towards her and had forgiven her long ago without even realizing it. I told her it was water under the bridge and I'd love to hang out. Long story shorter we rekindled our friendship and actually dated for 2 more years. But towards the end of the relationship, I clearly saw that she hadn't changed and didn't care about me. She proved me right by breaking up with me over a text and never spoke to me again. Last thing she told me was she was sorry...

  Sometimes OP, you have to cut people that are toxic and just plain not a good person. They might  have some good qualities, but deep down people are plain selfish and even if given a second chance don't improve as a human being and won't change. Whatever your choice, I support you.