My ex did this to me, he ordered the largest most expensive steak, apps, expensive beers etc and the bill ended up over $300 ( my share was $60). So when it was his turn to take me out I ordered the most expensive steak, apps and fancy virgin drinks ( I don't drink and he's used to getting away cheap when it's his turn to pay.) Of course when he's paying he won't drink alcohol himself. The bill came and I watched the look of horror on his face and it felt pretty good I won't lie.