I guess I think of long lasting relationships kind of like a mandala where the sand is designed and placed perfectly only to be swept aside and started over again on. A continuous work in progress where each party allows the other growth, transformation, and at the same time offers continuity through time. Chemistry is also at the heart of friendly, fun and loving relationships. Chemistry offers that spice to be sprinkled in throughout. My mom used to say that it is unsustainable to be in that first in-love phase of a relationship perpetually; in that phase it is hard just to eat or sleep much less to work on projects and creative endeavors.