I'll add this, and ask the old timers if they think it's a good strategy:
next time she asks to come over in the morning say no, that's not convenient. If you feel bad about saying no you can always offer to meet her at the school yard before they kids go in for the day

No one needs stress in the morning.

M 20+ T25+
S ~15.5 (BD)
BD 4/6/15
D 12/23/16

"Someone I loved once gave me
A box full of darkness.
It took me years to understand,
That this too, was a gift."
~ Mary Oliver