Was I assaulted on the bus?

I was sitting at the front of the bus, blue seats, minding my own business and on my phone. As this old lady was getting off the bus, I was told off by her for sitting in that seat despite it being blue in a rather aggressive tone and I was also poked by her quite hard on the chest somewhat aggressively by her as she left. The bus driver didn’t do anything and I was sort of left sitting there in a bit of…shock?

Ive never really had this thing sort of happened to me before and I have little to no idea to wherever or not I’m overreacting or this being legit.