Your desk pal is quite beautiful! What did you name him?
It's nice to have a desk betta. Miss America was my desk buddy in my 1 gallon QT tank, but she has since moved on the 20H and is the sorority leader.
Bettas do enjoy watching what their owners do. It's my belief that pets are drawn to us because we're fun to watch (and, we're the magical keepers of FOOD)! We also keep them in containers so they couldn't get away if they wanted to... but, that's a minor point, lol!