Stuck on 3 words

Its cold outside,
In this world that I'm in.
Messing up with you,
Was for sure my biggest sin.
Now I have no one
To help me through.
I'm just stuck here,
Feeling cold and blue.
I should have known,
not to come on so fast.
Now I'm by myself,
Lying in the cold grass.
And your just another,
Thing in my past.
My emotions are too strong,
I can't hold them back.
We got stuck on I love you,
And thats a fact.
It sucks that it had
To end this way.
Now when I'm old and gray,
I'm going to have not anyone,
To die with day by day.
Life goes on,
Mine was cut short
Right after love ran its course.