That's not in the game yet, but is something I'd love to add. Perhaps the player could face persuasion checks that get harder and harder to pass as their addiction to Dizzy's intensifies. Plus flavour text about how much you're craving them!
At some point of addiction you randomly lose a chunk of time to going to dizzy 's and eating donuts. Not cash of course because you own it. I'd also love to see bigger portion options at Dizzy 's...
Have you thought of fleshing out the system a little more? Like upgrades for the place? Otherwise it's super fun.