Treat (someone or oneself) to (something) verb phrase
To offer and pay for something as a present or as pleasure for someone.
After the university entrance exam, I decided to treat myself to a trip to Paris.
Let's eat out. I will treat you to lunch.
On the occasion of her birthday, she treated her friends to a round of drinks.
To pay the bill for something
Be interested in buying something
Something offers better value for your money.
To make a payment for something.
People tend to like forbidden or illegal things just because they are forbidden or illegal.
He must have believed that stolen fruit is the sweetest, and he, therefore, cheated on his partner.