Assuming in a typical courting relationship network, a female is being courted by 8 males at the same time, and assuming all those men would devote much of their resources to their courtship and hence would have few resources to spare for other inter-personal relationships, it looks like the neocrotex of the female would need to take on more burden (e.g. more developed) as to take care of those 8 links, than the neocrotex of each man needs to maintain a single link.

This may explain why most of the time woman is more adept at dealing with those sociality issues.

                                    male_0
                         male_7    o
                             o     |     o male_1
                              \    |    /
                               \   |   /
                                \  |  /
                                 \ | /
                      male_6      \|/ female
                         o---------o---------o male_2
                                  /|\
                                 / | \
                                /  |  \
                        male_5 /   |   \
                              o    |    o male_3
                                   o male_4