Confusion

As I sit here, I wonder what to do, I've just talked to him, told him that they plan on introducing me to another, and I've seen his reaction.
How can I do this to him, to the one I care for the way I care for him?

How can I cause him such pain, knowing I can make it disappear by letting him go?

Are my reasons for staying selfish?

Because I know that without him my life is meaningless, that it has no purpose?

That without him I am an empty shell?

Living day by day, dead?