People can take advantage of you even if they really are poor. I had a "friend" who was on disability and didn't make enough each month to afford a place to live. So she used to stay in homeless shelters and cheap motels. I tried to help her by paying for her to stay at an extended stay hotel for a week (which cost over $500). I also bought her groceries and drove her all over town (once to a psych hospital in the middle of the night. I was up until 2 am that night). I did all this out of guilt. Instead of thanking me, she sent me a text telling me to kill myself and called me the C word. I blocked her and cut her out of my life. She's not going to take advantage of me anymore.