First of all, you Sir, are beautiful!
As the others state, you can bring a horse to water, but you cant make them drink. Definitely do not drop by. I would say reach out via remote means. Text, email, whatever you got. And just tell her how you feel and that you are there to help in anyway you both think may be helpful.
She sounds extremely troubled and I will not speculate (nor should anyone) what the problems are. But do please remember self-care while caring for others.
I would refrain from offering money for several good reasons.
Just contact her, let her know u genuinely care as a person and u are worried but also understand she may need space and you are hoping the silence is her recovering.
You may never hear from her again and if you dont, it may actually be a good thing, meaning it may be because she's better and has changed everything in life.
Its a sad fact in the industry that yin/yang applies as ever. Its great that the money symbolizes boundaries that either party may suddenly disappear but it also sucks to love /care for someone and just never know what became of them. Its the downside. I just send them love and good energy and hope they feel it.
Take care! xo