How does conflict express itself in your relationship?
Is it a "Don't talk. Stay away from me. I'm tired of going over this a hundred times again?"
Or are the two of you so stuck in a brooding kind of Cold War that if the residual tension gets upped by even one degree for any reason a Games of Thrones scenario breaks out?
Does your issue require multiple sessions of deep seated analysis?
Many couples try therapy or counseling, It's the process of meeting with a therapist to resolve problematic behaviors, beliefs, feelings and relationship issues.
Or more simply would an invitation to a neutral 3rd party help?
Fairness, safety and a simple listening to each other.
Isn't that when the basis of communication starts?
A held breath released. Some movement.
All in maybe two or three meetings. And maybe even just one if there is real AHA moment.