For eight years, with this person, or quite another (maybe a sequence of them) you have found that either love, professional partnership or even battles bring in deep questions about who or what has the upper hand.
I suspect the Pluto-Sun opposition near Thursday 7th July will make it very clear to you. Try to skip the Full Moon period near Tuesday 19th July for major judgement calls or action plans as it falls in the same area of your horoscope, where this person has so much influence.
Pluto always raises questions about the balance of power. He was found and named in 1930 and was demoted in 2006. During that time, astrologers have come to understand him better. In your own solar chart, Pluto is showing you that self-control is the only way to control what is taking place with this man (or woman).
Pluto in mythology had to be tremendously self-disciplined. He was required to control his passions, lest he unbalance the order of things. Look at how Pluto is manifesting in your own life, near the dates above. Drawing on past experience over the last eight years will be helpful, Cancer.