Hi Winnie ~ welcome to the forum
I can understand how annoying this is becoming for you.
Is it every day, or just once per week, that she needs this lift?
If you know the days when she will ask, perhaps you could arrange to be busy that evening, so that you don't have time for the extra miles.
Or perhaps you could go in without your car, so that you can easily say no.
Or maybe you could just keep away from her completely, since she is being distant, anyway, so that she doesn't get the opportunity to ask you.
Maybe she would get the message then.
Otherwise it
is difficult, and could reflect badly on you ~ I can see that ~ if you live relatively close and simply refuse to take her home.
Or maybe you could just take her home.
After all, it's only the occasional ten minutes, and it means that she gets home safely.
It's probably more the stress and frustration that are getting to you, rather than the extra minutes and mileage.
The other alternative is to talk to her and tell her what you have told us. She may not even realise that she is doing this and how bad it looks.
Good luck!
