How silly to keep a torch burning for someone who is NEVER going to be the same person you were with way back in the day.
Do the work you need to do to flush this turdy thinking down the toilet. Stop the facebook connection as well or with your current inability to get past your "limerence" (google that and read the wiki link and educate yourself about your soon to be recognized symptom as a mental illness.) you're going to THINK you're in love and you're going to drive a horrible emotional wedge between the connection you and your wife have been sharing.
Stop being silly.
“The willingness to accept responsibility for one’s own life is the source from which self-respect springs.” ~Joan Didion