Phobia: An extreme or irrational fear or aversion to something.

I fear it,
I get extreme worries,
Thinking about the
Possibility of it,

It’s scary,
Scares me, I hate it,
But it is not
Irrational, to me

Even though the possibility,
As of right now is very little,
I still fear it beyond belief,
My phobia: losing you.