Honestly what goes on in her other relationship is none of your business. She doesn't have to share every nitty gritty detail with you. Murf would have a stroke if I shared every aspect of our relationship with my husband. All my husband needs to know is where I will be.. when I will be home.. etc. Not the fine details.
It is NOT her job to make you feel secure. Stop being a needy emotional vampire and learn to deal with your feelings yourself. Stop the emotional hissy fits all you will succeed in doing is pushing her away and or make her resent you.
40 yo straight 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.