Will someone please explain hay fever from an evolutionary standpoint?

I’m turning faith…

You must remember this
A kiss is just a kiss
A lie remains a lie

First cut is deepest,
they claim, but what do they know?
Second is killing.

(Fooled once, fooled twice
No doubt who is the fool
Dagger hits the clown’s red nose)

More than a handful
Yet not enough
Refused – refuses – to say when

Who am I
To forgive?
Who am I
To be forgiven?