No title

There is a hidden word in this poem. guess.

A person,
someone you know,
a friend.

My love,
someone you'll be with,
til the end.

Amazing,
spending all this time,
just us two.

Now i see,
i'll have to fight to the end,
with you.

Denying,
what i did was wrong,
falling down this slope.

All this time,
i thought you'd be gone,
but there was hope.