He was scared.
Scared he found the person he is going to love for the rest of his life, knowing that his life is over and theirs was beginning.
  It was always real.
  But now, all the “one days” were becoming the nows, and that scared him.  He wasn’t ready to give up himself, but was afraid if he held on to this false sense of self, or what he believed that to be, he would lose any chance of “us”.
And he wasn’t ready for that.
  But she was.
And it scared him.