Although Alec technically knows who both he and Libby’s biological fathers are, his feeling of not truly knowing who he is suggests that it takes an actual relationship to know someone. This is significant, since Alec himself fantasizes about taking off and running away, beholden to no one, though he apparently does not make the connection that is what his own father, Craig, did. This contradiction suggests that Alec will face his own decision someday to either stay put and accept himself and the people around him, or to leave and abandon that identity.