It was very sad their divorce and that she left but there's a theory that Kono found another man and had a kid with that mam while chin was with Abby and Sarah going back to visit Hawaii and to see how Adam is going on but had a disappointment with both kono and Adam as they have moved on and won't be living their life together anymore.There is another theory that Kono came back to the island with her and Adam's baby but she won't share custody with Adam then Adam tried to gain more love to Kono and Kono said she loved him still so their divorce is over. Either one of the theory is true and one wrong you decide.