AITAH for not wanting to give my coworker a ride home?

So my coworker has asked me for money for months now for lunch and I have been kindly giving it to her up until recently.

Now she wants rides home from work even though I get off 30 mins earlier than she does.

Here's the reason I don't want to give her a ride-

She has 2 cars. Yes you heard right 2 cars. One she gave to her son to drive which is understandable that's her son. The other she gave to a guy she's not even in a relationship with.

She feels that by giving him the car it will somehow make him want to be with her.

I'm not usually the one to judge people for their decisions even if it's terrible but I can't condone something this idiotic. Why would she give her car away to a guy that she's not in a relationship with and even if she was why give the only means of transportation to someone who can't pick you up from work?

It makes no sense.

So am I the asshole for saying no? I did give her money to get an uber but I'm not going to be her chauffeur. I refuse to do it knowing the situation.

I feel bad but at the same time I have to start putting my foot down or I will become a doormat.
AITAH for not wanting to give my coworker a ride home?
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