So, uh… We have the same thermostat at my job. It’s not great. You can’t just tell it what temperature you want the room to be, you actually have to tell it if you want it to heat or cool to that temperature.

Yours is set set to 65, but if you look to the left of the current temp, it says “heat.” Someone likely forgot to change that when the weather warmed up. IIRC, one of the three unlabeled middle buttons will fix that.