Ugh! It sucks to start your day with disappointment.
Please remember the three C's, especially "You did not CAUSE this"
His lack of parental responsibility, blame-shifting, and failures are his. He made these choices.
You are a good mom in noticing your daughter's disappointment and discussing it with her. You are letting her know that it is okay to talk about the 'ugly' emotions of sad and lonely. Letting her know that all of her emotions, even anger, are normal is a good way to teach her healthy thoughts.
Her feelings are real and they matter!
(((Hugs))) to everyone today as you continue to grow and learn.