The context of the following conversation is Despite needing to cut back on her sugar, Taylor drank soda.:
Taylor says I'm so annoyed. I blew my diet with too much sugar..
The friend responds Uh-Oh. Hope you didn't go to the bakery..
Taylor responds No. I made a stupid move and drank soda..
The friend responds Oh, man! You could have at least had a donut if you were gonna screw it up!.
Taylor responds I know. I screwed up my diet over a soda! It's just as bad as the bakery, only less satisfying..
The friend responds Yeah. And you could have just drank diet!.