eat one for the team
You eat for your partner so they don't look like they just got hit by a truck full of snacks.
She ate the whole pie. I took the last piece so I wouldn’t have to see her turn into a pie.
He ate the entire cake. I took the last bite so I wouldn’t have to watch him die.
She took the whole burger. I took the last bite so I wouldn’t have to see her turn into a meatball.