Tom Gaffney feels that monogamy is integral to the reasons he values marriage equality:
Call it jealousy, call it insecurity, I simply couldn’t process being open. Both my partner and I come from stable, loving homes with heterosexual parents that have remained committed and monogamous. They, along with greater society, have taught us that this lifestyle brings the greatest deal of personal joy and emotional fulfillment. We have fully bought into the idea and don’t think ourselves narrow-minded for doing so. … We want what our parents have. Give us about thirty years and you might get an invite to our future son or daughter’s (most likely heterosexual) wedding. We’ll be in the front row: the proud Dads that still want only each other.
The Dish 