One-upmanship
Example:
X: aww i like kati
y: ohhh yeaahh...you doo do yaa (he (y) doesn't like her but just wants to ruin the chances of them getting together, so behind (x's) back gets her (Kati) to go out with him, X is annoyed about them getting together but pretends its not bothering him, meanwhile X is using the same M.O 'method of operating' to get one back.
The one-upmanship escalates until either one stops, or they realise there both at it..(which would quite amsuing for them, or embarrasing.. depends how you take it ;)
X: aww i like kati
y: ohhh yeaahh...you doo do yaa (he (y) doesn't like her but just wants to ruin the chances of them getting together, so behind (x's) back gets her (Kati) to go out with him, X is annoyed about them getting together but pretends its not bothering him, meanwhile X is using the same M.O 'method of operating' to get one back.
The one-upmanship escalates until either one stops, or they realise there both at it..(which would quite amsuing for them, or embarrasing.. depends how you take it ;)