The inability to live in the present lies in the fear of leaving the sheltered position of anticipation or memory, and so of admitting that this is the only life that one is ever likely (heavenly intervention aside) to live.
And on relationships. Everyone whom I have wanted to impress, I become a sort of chameleon and only reveal parts of myself that I think they might enjoy.
And when the initial excitement of getting to know a new friend ends, I am a little changed.
Everyone returns us to a different sense of ourselves, for we become a little of who they think we are.