I found this article for practical advice. I totally suck at it. Yes, I'm in a PM. No, I do not wish to discuss my circumstances because they are *really* crappy right now. I cannot overemphasize *really crappy* enough. But I digress:
https://www.morethantwo.com/wp-content/uploads/2014/09/practicaljealousy.pdf
I don't agree with the site because it's polyamory but it's good advice. Also, if you want to live a miserable PM or non-PM life, I suggest you read this:
https://www.morethantwo.com/wp-content/uploads/2014/09/making_relationships_suck.pdf
https://www.morethantwo.com/wp-content/uploads/2014/09/practicaljealousy.pdf
I don't agree with the site because it's polyamory but it's good advice. Also, if you want to live a miserable PM or non-PM life, I suggest you read this:
https://www.morethantwo.com/wp-content/uploads/2014/09/making_relationships_suck.pdf