Hello- Thank you for asking the question here at JustAnswer. I have read what you have written and am happy to respond.
Considering that the foundation of any successful relationship is honesty and trust it is hard to believe that this relationship will change.
I have treated couples for 30 years and this type of manipulative behavior represents a character disorder and such types do not change.
I would suggest that you find a counselor to sort this out and act accordingly with the knowledge that you have been betrayed .