Thank you, Tientai, for the nice image of the chart and Luck Pillars. It helps in analyzing.
Ji Wei represents the husband, and this pillar is sandwiched between Day Pillar Gui Hai and Year Pillar Gui Hai.
The reason for the difficult relationship with husband is the sandwich/squeezing.
Based on the image of the chart, i think you would agree with me that she is also the more controlling one in this relationship. Ji Wei is surrounded by three Gui Hai's. Gui Hai represents herself because it's the Day Pillar. She's all over him!
Bazi is not only about chart structure, season and DM strength, but also the images that the chart represents.
Luck Pillar and year pillar:
Ji Hai is the arrival of the squeezer (Hai). Next year Geng Zi: Zi is arrival of Gui, so again it's arrival of the squeezer. Quarrels are still expected, unfortunately. This can be mitigated if she learns to give some space and "not squeeze" her husband. But this is a tough luck pillar for the relationship, because the Luck Pillar Gui Hai is just when the squeezing occurs.
So, that's my input on this chart, hope that you can get something out of it. It's only from the wife or DM's perspective, though...