The King of Wands is a wise character. But in reverse, it represents a cunning character. You could also be doubting your gifts and abilities, perhaps caused by this person. This card appears reversed when there is someone with a deflated sense of self. Have you been directing your focus outwardly?
You could be dealing with a controlling partner. You may have put them on a pedestal to the point you take in every word they say, even every crime they commit. The positive qualities of the King of Wands may have been taken to the extreme here. Remember, they are only human. There is wisdom in reflecting on your actions in the relationship, too.
Some of you could be dealing with a manipulative partner who lied to get what they wanted. They could be breaking promises but blaming their failures on you. Whatever it was, they were not being entirely honest with you about their identity and intentions.