It might be the case that your child is not having an emotional connection with you, not reciprocating your care verbally or otherwise.
You need validation for your effort but having a hard time getting it, so you double down, and feeling the strain.
Maybe you should ease up a little, at least don't show it on your face for your child to see.
Have your child help you with chores, so that your efforts get a chance to be appreciated.
Empathy needs to be taught when lacking.
That mother was being irresponsible; she should have thanked you for your concern and the trouble her children have caused you. But she was not to be bothered.
