Each of us gets to (choose) our own friends, lovers, and spouse.
You said; "I have a friend that just wants to be my friend to get money out of me. Then she acts like I am not her friend at all."
It sounds to me like you have not been a good friend to yourself!
Why are you so concerned about "hurting her feelings" when she could care less about your feelings? You don't need to support "toxic people". Drop her and only explain if she asks. Stop buying friends!
If you're going to lie down like a doormat don't complain when people walk on you! Remember you have the power to say "yes" or "no". You get to (choose) who you spend your time with!
Make some new friends!
"Never love anyone who treats you like you're ordinary."
- Oscar Wilde