I don't think it's strictly about sex (although obviously it's a component) - despite frequently posting in this thread I don't have an issue with polyamory itself; if it works and everyone is happy then god bless. The key point is
if it works for everyone. Because of jealousy and other issues it rarely works - and then on top of that a lot of these folks try and use it to save a failing relationship or to address cheating, instead of ending the relationship and moving on.
Trawling through, here's another sad polyamory tale.
https://www.reddit.com/r/polyamory/comments/9qv1l7/my_partner_and_i_are_having_issues_because_he/ (
http://archive.is/kCzd1)
https://snew.github.io/r/relationsh...artner_43m_and_i_25f_have_a_very_complicated/ (this is different from the above link in one specific way)
This is a tale of our protagonist Elle and her journey into not realizing that her on and off again boyfriend will tell her what she wants to hear and she's clearly the side chick. I'm not sure why she posted this in r/polyamory aside from the fact her boyfriend has a girlfriend, but it's tragic enough to post here.
Special Note - On the most recent post the user changed "30 year old" to "35 year old" but is sure sounds like Brad was 28 and "Lizzie" was 15. I have included the ceddit link that uses the "30 year old" as I don't believe that to be a mistake as Elle was 21 and Brad was 39 when their relationship started.