Why do people do this

So I came out of my office to get some water and my worker asked me how things were going.

I said things were fine but it was freezing in MY office.

He says what are you talking about it's not cold in here you must be crazy.

I said well it's cold in my office.

And he says I highly doubt that. It's definitely not cold in there.

I mean why say that. Yes it is cold to me, in fact I turned on my little office heater to warm myself up.

Do people just want to argue just to argue?