You should let her be.

Your research is valid and could provide you with a valuable insight but the research is about the disease in general, not about this particular person. Every person is different. What you are learning is a very general knowledge about meds and illness. It’s not knowledge of how she operates or what she wants to do.

It’s not up to you to ensure she isn’t lonely or alone or gets treatment. It’s up to her.

Also even though you feel that you need to be by her side and keep relationship going, she might feel differently. You can’t possibly know what’s better for her. Listen to what the person tells you.

She wants her space. Doesn’t matter if it’s because she just wants to end for other reason or is it because of her illness. You don’t know if she is pushing you away because she doesn’t want to continue this relationship or because nothing is “tying you together” (typically not being married is not the reason to end a relationship)

Please respect her wishes and move on.