Uber Driver Called Twice

Hello, I have a quick question for this sub.

I ordered an Uber yesterday for a typical short ride from my place in the city that is only around 10 min (or so); given traffic. Anyway, the driver seemed a little sketchy and super talkative (more than normal from my experience) during the entire ride. He kept asking about the location I was going to over and over again, to which I already confirmed from the get-go where we were going.

At the end of the ride, I got out of his car and went into the building of my location. As I go into the building, he is slowly driving towards the location he dropped me off at. He called me. I answered the phone the first time and he asked if I needed anything from him or another ride. I told him "no thanks, I'm good - thank you". After I hung up the phone, he called me twice but I ignored the call as something seemed off.

How normal is this for drivers to call after a ride? Four years of using Uber/ride-share I have never had this experience before. It was super weird... Is it worth reaching out to Uber about this? Thanks in advance.

EDIT: I'm a dude.