Why are people so ungrateful?

Brother's wifeMy husband broke his ankle while on vacation. The husband and child flew home because the child had to go to school and she had to undergo surgery.

She asked me to cook something for dinner, I prepared everything, took off the bed linen, washed, ironed and made it, bought food for breakfast and left on business. Mythe husband met them, brought them home and set the table, although the time was already 22:40. The child was put to bed, the brothers had dinner and drinks, in the morning my husband could not take his brother to the airport, he offered to call a taxi, so there was exhaust fromalcohol​

Well, in general, I received a threatening SMS from my brother’s wife about what bastards we are, and that I should not come close to her child and a bunch of other nasty things. When she was operated on, she flew home, I still came and looked after her from morning to evening for a week. But then she wrote to me: “don’t come, I’ll figure it out myself.” I didn’t understand anything, but after talking with her mother, I found out that this was because I didn’t come test-antibiotic.com early in the morning and didn’t prepare breakfast, although her husband was at home.

I stopped coming to her. Now she doesn’t want to see or hear about us at all. We live on the same landing. Please advise what to do. All mineher friends say that we need to send her to hell.