One time a bus driver yelled at me for riding back and forth on the bus. She asked,``Where are you going?'' Was she concerned?

Drivers' routes and work shifts don't usually permit them to see you going back and forth, unless you're seeking out that one driver for your travel. That driver might recognize you to be stalking them.

Yes, she was likely concerned about where you’re headed. Next time, tell her you’re a bus enthusiasts or just someone who enjoys taking bus trips or “buscations”.

"..riding back and forth" ?  Like to and from work ?  (not likely)

Like moving from seat to seat?  Guess any erratic behavior worries a bus driver.  Sit down and enjoy the ride.

You need psychiatric help.....

You would have had to ask her...