Not everyones SO has another partner. I would never have gotten to have an overnight or long weekend with Murf because my husband is mono. That also would not be fair to Murf to have to always have to regulate his wants and needs by Butch's comfort level. He is not dating Butch.
40 to staight female
Married in the eyes of the government to Butch since 2001...
Murf my monogamous second husband has been with me since May of 2012.
In a V relationship with an average 60/40 split of time. Only due to Murf's and Butch's crappy work schedules.