I think I speak for everyone in commending you for your humanity, You probably made her last few days showing such an interest and love for her; you can be happy in the knowledge that she probably passed with a full heart.
Thai's can be strange and appear somewhat shallow when it comes to death. I do not think it is that they do not care but more that they believe in a next life. Someone, such as Bam, is going to a better life and therefore they will feel best just to let her go and not fight it. I can really understand the reasoning behind this if you are Buddhist and believe in reincarnation. Why prolong a life of pain when you have a new, probable, better life waiting for you. I think that is how they might feel about Bam noi. Bless