Peter I can't

Peter today we spoke
It tears me inside
I want you happy
But I can't lie
I can't let you go
I can't give you away
I know I'm being selfish
But just let me be that way
You said you saw us together
Growing old holding hands
I'm trying to believe it
But I can't make future plans
I need to let you go
To be strong and set you free
In my head it all makes sense
That one of us gets to be happy