I can understand how upset this makes you, but is it possible that your friend also needed someone to confide in about
this? It's been my experience when friends are told about
health problems, especially ones that arent going away, some tend to jump ship because they don't know how to handle it. People are not perfect and true friends are hard to find. Since you have confronted him and expressed your feelings about
it and he has apologized, maybe give him another chance?