Hey there ab786,

WOW absolutely WOW,

your story is absolutely similar to what I experienced back in college as well. I see that you are an introvert and as a fellow introvert there is no reason to be ashamed. There are plenty of confident introverts out in the world who just need their own space.
As for your issues with your female friend, it can be very frustrating dealing with someone who has a lot of emotional pain from their past which in turn can cause you to keep “pouring” your emotions and energy for that person.
My best advice to you would be to go no contact with her. Yes I’m aware it will hurt, but the NC is meant to help you heal not to purposely hurt her or get back at her. During this time, you will do a lot of self reflection and in time understand that you were an enabler for her behavior and realize that some people just go through life with the wind. If you need to, electronically block all contact with her. I assume you are still in school and if she is still on campus, I would strongly recommend no acknowledgement and if you have to just keep it short with a “Hi” and go about your business.

If you still need some help, let me know.

Take Care