Is it reasonable to be pissed off with lateness, even though late people do me favours?

[ACardiganForCat]

Relative was an hour later than she said she would be today when bringing her friend to visit my new baby. This annoyed me. However, do I have the right to be annoyed when she does me massive favours (childcare) and brings me food?

She's often late for social stuff but never late to look after ds1.

I hate lateness of any kind. But, to be uncharacteristically balanced, if you are at home with a newborn and no plans for the day then you could probably cut her some slack. As long as she called/text to warn you of impending lateness. Maybe. Depends what food too?

Yes, we can't possibly decide on the extent of her guilt until we know what food she brought!!