If you like learning about communication, check our /r/polyamory Similar to /r/relationships, this sub has many stories, except that they get even more complicated. A nice reminder that honesty gets you the furthest in life, even though it might hurt.
I used to sub to r/polyamory, back when I was trying/attempting polyamorous/open relationships (either, both). Unfortunately the lifestyle wasn't much for me. There are a couple of issues I personally have with multiple relationships that have more to do with practicality than jealousy or insecurity, necessarily (I don't have the time to have multiple successful relationships going at once, nor the interest to make that time by engaging less in my other leisure activities, for a big one) not to mention a rather strong natural competitive streak that makes it rather hard not to view others dating the same person I am dating as competition or people to compare myself against. I like to win a lot. It is not always an endearing quality. Honesty gets you the furthest in life if all parties involved can handle honesty like adults. I do agree that polyamorists can do magical things with relationships and communication - but I never found r/polyamory to be a haven for dramatic stories so much as advocating for a lifestyle whose appeal I didn't feel. But - I'll check it out and see if it's changed any.
I guess I am in the experimenting phase when it comes to polyamory. The point about people handling honesty like adults is very important. Until now, it has been going good, but my experience is limited to 1.5 years of multiple/open relationships. I noticed that it only tends to work out with girls that have a high self esteem. And ones that understand the difference between the time we spend together and the time she spends with somebody else...