I know what your saying, Mia. I lost two friends along the way, one when I was 11 years old and another when I was 16 years old. It really is horrible and I also felt "left in tears and betrayed." Even though it'll be hard, I know that Danilo will be there for you. He was meant to be there before and now.
Keep your chin up. Things will get better as time goes by.
I'll be sending a little prayer.
Take care.