So I have some feelings that keep coming up and they are getting more and more intense and I don't know anymore what to do with them, even though at first I decided to handle them on my own. It's mostly about the frustration and unfairness although there is envy and jealousy aswell. This feelings arise in the context of one of my partners, called Gru here, that expressed his trouble with me having more than a physical relationship with his other partner, called Elio here, after all three of us had a threesome. Although I really wanted to get to know Elio better, at that moment I was ok with abstaining myself for the sake of respecting my partner's limits. It was all manageable even when they started having threesomes with Elio's other partner. But as Gru and Elio's partner developed an interest towards each other and decided to have a relationship, the feeling of frustration and unfairness keeps coming up and getting stronger. I feel frustrated because precisely the thing that I wanted is happening between them (Gru can try a relationship with a meta and so be in a triad) and it feels unfair because Gru gets to explore a relationship with a meta and I don't. I keep thinking that I will be the one left with a lot of difficult emotions, while they will mostly have a good time. I feel more at loss than they are in this situation. The problem is that even though this is something I decided to keep for myself so as to make sure my partner knows I can respect his limits, I'm afraid this feelings might pile up and explode when I don't want them. What do you think about the whole situation?