Who said you won?

We were together
You promissed forever
You thought I'd fall for your lies
But I took you by surprise
I ended it when I saw you with her
So I have a question for you mister
Who said you won?
You lost the game hun
But it's strange right?
How come the player lost the fight?
So think twice
'Cause I won't be nice
Sorry babe but I won your game
Don't feel bad since it was lame
But I want you to answer this question
Who said you won??