That's what I see in many relationships. Two people pretending to be normal and slowly building up to critical crazy mass.
I prefer my system. Ulaven and I both have "get out of crazy free" cards and we can invoke them. We just can't invoke them at the same time.
I'm not sure that such a system would work for me. I'm rarely normal, and I prefer people who are the same. Maybe two crazy people can survive together if they live far enough away from the nearest neighbors.