The Fray. "You Found Me" (№ 151686)

But in the end everyone ends up alone
Losing her, the only one who's ever known
Who I am, who I'm not and who I wanna to be
No way to know how long she will be next to me
But in the end, all left alone,
Losing her, the only one that knew.
Who am I and who is not, and who I would like to be?
And no one knows how long she will be with me.