He is undergoing inner conflict because of prior karmic dilemmas involved with love relationships in general, not necessarily this particular individual. They have had successful love relationships in the past, as he intimates, so that is always a good beginning to build on. But life has its ups and downs and times of uneven experiences, and worse, that can be enough to spoil things. When people have been traumatized, all bets are off about what they can handle going forward. So this would be a good undertaking, to help him clear the decks a bit, so to speak, to remove the burden of past trauma that can act as a negative influence on things.