Cheers for monogamy! It is a true sanctuary and also, as Robert Augustus Masters says, it is an ashram.
"Intimate relationship is perhaps the ashram of the 21st Century — a place especially ripe with transformational possibility, a combination crucible and sanctuary for the deepest sort of healing and awakening, through which the full integration of our physical, mental, emotional, psychological, and spiritual dimensions is more than possible."
http://robertmasters.com/writings/the-evolution-of-intimate-relationship/
This has been my experience too, as I embark on the 20th year of marriage with my beloved husband.
Nice! We are halfway there after just crossing ten. I'll tell you what, you two keep it up and we won't catch up!