This relationship seems very one-sided. You felt that you were carrying the weight of the relationship. You helped her but she didn’t help you. One-sided relationships are always off-balance. They never last long.
It is important to realize that her behavior may not have anything to do with you. In other words, it may not be personal. It is more likely that she is reacting to her untreated anxiety and depression. Mental illness complicates interpersonal relationships.
You both may have expected too much from each other. You shouldn’t expect her to treat your mental health problems nor you hers. That’s the job of professionals.
Given your admitted mental health conditions, I would encourage you to consult a therapist. Encourage her to do the same. Professional therapists are trained to treat the types of problems with which both of you are struggling. Once treatment begins, the friendship may naturally resume. Please take care.
Dr. Kristina Randle