Seeking expert testimony is a sign of strength. A personal relationship with a caring professional is proven clinically effective.
I believe that I can help.
Back on your 27th anniversary she "feigned" a confession of marital infidelity. It was not the first time that she has done this. At the time I thought that she was just trying to tease and arouse you, but I see that she has done it before. She also leads a lifestyle that gives her ample opportunity to meet other men, and is an extroverted, and perhaps flirtatious woman.
She also seems to be a very manipulative and unforgiving person and has used your mistake of withholding financial information from her as a means of further dominating you.
I suspect that she may have a Histrionic Personality Disorder. That is a hunch based on what I know of her from some of your past questions, but I will let you decide. Here are the psychiatric manual criteria for HPD:
(DSM IV - TR) HISTRIONIC PERSONALITY DISORDER
A pervasive pattern of excessive emotionality and attention seeking, beginning by early adulthood and present in a variety of contexts, as indicated by five (or more) of the following:
(1) is uncomfortable in situations in which he or she is not the center of attention
(2) interaction with others is often characterized by inappropriate sexually seductive or provocative behavior
(3) displays rapidly shifting and shallow expression of emotions
(4) consistently uses physical appearance to draw attention to self
(5) has a style of speech that is excessively impressionistic and lacking in detail
(6) shows self-dramatization, theatricality, and exaggerated expression of emotion
(7) is suggestible, i.e., easily influenced by others or circumstances
(8) considers relationships to be more intimate than they actually are
She may be involved with someone else, but may just be getting advice which she takes too seriously (she may be very suggestible).
She is a difficult person and you may never be able to fully please her, or her please you. It is all a matter of how much you can live with. You do not have a very fulfilling relationship, it appears. You must decide if you want to continue (if you can) or to start a new chapter in your life.
I wish you great wisdom and courage in deciding and shall keep you in my prayers to that end.
Elliott, MAE, LPCC, NCC, CCMHC