Originally Posted by onoma
We're fighting on a weekly basis, and sometimes I feel like we're adversarial with each other. Worse yet I think our flaws are similar and we feed into each others' weaknesses.
This is what has me worried. It sounds like the relationship is important to both of you, and that you love each other. But, sometimes people just aren't compatible. In my opinion, relationships should bring you joy, happiness, growth, and other positive things. If you really feed into each other's weaknesses, it may be that your relationship makes you both less happy. And maybe you aren't the best people to help each other grow, but rather your dynamic reinforces the negative aspects of your selves.
About the pseudo-poly approach: I agree that it is very likely to only make your relationship worse.