Nice post, @axious. : )

Compersion, as you explained it in the inro video, seems to be one of the aspects of social intelligence (connection with and feeling of other people's emotions) as Goleman defined it.

She was sharing her excitement about a recent sexual connection that did not involve me.

Well, this was unexpected (I mean for the reader, not for you)! : )

I think that monogamy is not a very natural structure for us humans. We do have an instinct that drives as to mate with different partners. That said, I agree with you that polyamory is not for the faint of heart since you have to deal with a lot of fears and jealousy.

Suddenly, out of nowhere, instead of feeling jealous that your partner is discovering joy and pleasure with another human, you now feel a sense of warmth and appreciation for it.

I guess that, although it is the best option, you need a very high level of consciousness and acceptance to achieve this. Good job!

Cheers! : )