Support, advice

I am writing to get support and advice. I am in a relationship with a woman who lives in another country. I met her while on a mission there. She was treated for breast cancer in the past. She lives in Vietnam. Plans were to bring her to the U.S. next year and be married. I am 67 and she is 59 years old. We were both excited and happy about spending our lives together. On 6/20/23 she found out that the cancer has returned. She spent all of her resources on treatment the first time and has nothing left. In her country, they must pay out of pocket for most of the treatment. I could pay some but my money would run out quickly. I spoke to an immigration attorney to see about getting an emergency visa for treatment here. I don’t know where to turn to get her treatment once she is here. Any help would be greatly appreciated. I also need emotional support. I am devastated.