Nice to see some old names here, Ari, LR, SNeacail. I'm back because I'm giving Poly a go for myself and one of the first things I'm learning to deal with is the loneliness of being apart from a love. I read the Pema Chodron article and it was just what I needed.
Loneliness is obviously something not to be avoided for me because when I was identifying as mono I had exactly the same issue when Zen was away with his love. Now I have another love of my own and I miss him. Time to sit with the feelings and accept them I guess. :-).
Kudos to you RP for doing the hard work. :-)