You are not responsible for other people. Fullstop.
Let her go and focus on yourself.
It’s not in your control what she does. This emotional blackmailing will not stop. Stay away and cut her off.
I repeat what I already said multiple times
You have to work on your own emotions, we need help to overcome unhealthy patterns like feeling guilty when we don’t do like others want. NO is a complete sentence. Also directed to our own feelings. Put your own sanity & health first. That’s love. Enabling is not.