The reactive aggressive group did not differ from the combined group on peer delinquency. Thus, both were high on delinquency and peer delinquency. Also, we comment on the overlap between peer delinquency and self-report of delinquency in the results section (p.9, line 14).
It would help the reader to have some information available as a way of arguing more strongly that the accepted solution (which does make theoretical and empirical sense) is the strongest grouping.