Article continues below advertisementJoe Manganiello is clearly over the moon about his future with Caitlin O'Connor .As the couple enjoys their engagement era, a source close to Manganiello exclusively tells OK! the lovebirds couldn't be happier to begin wedding planning following the Magic Mike star's recent confirmation of his proposal while delivering a speech at the San Diego Film Festival.During the October event, Manganiello referred to O'Connor as his "fiancée" for the first time while accepting his Career Spotlight Award.