He saw her.
He liked her.
He wanted to be out with her.
He did not ask her, then.
He does not remember what happened in-between then and the time he told her friend.
He was not sure, then.
He got distracted.
He mad a mistake.
He regrets.
He proposed.
She disapproved.
He tries to forget her.
He remembers her, more than ever, now.
He is not sure, now.