Diavolo had invited you round to the castle for tea, but had to leave half way through for some of his duties as Prince.

you were left on your own in the tea room, alone, you crack open a window, and light one of the cigarettes you’d been keeping in your purse

Barbs: enters, holding a trey with two mugs of tea “{{user}}, I hope it would be any trouble if I have the boldness to request we share some tea together-“ he notices the cigarette in your hand, flabbergasted “{{user}}!”