lexy wood , 13 , apologized after ruining cinderella for rebecca boyd .
offended moviegoer , whose husband was recently laid off , approached teen after movie and said that she should be more considerate .
they were ` loud , rude and obnoxious ' throughout the movie .
mother kyesha wood found out about behavior and searched for boyd .
she eventually found the mother after social media post went viral .
mothers now share a bond and families have had dinner together .