Kid me not

A clever word
A tacit lie
While all this while
I knew it all
And yet I played

In retrospect
I think I know
In happy times
And heated words
It was not me

So you can try
And claw your way
But you are never
One of them
Another playful company

For time is all
That matters most
It heals your heart
And blurs the fun
And forms the mathematical group