Hi Emily, Your post is no longer than many here. We all usually need to vent when we first find this place.
I think there might be a problem with your bf's inability to share emotions, leading you to feel unfulfilled in that area, and seeking it elsewhere?
Its tougher to be young and poly, because you are still getting to know yourself. And so are your young partners.
My daughter is 25 and was poly, but has taken a break from going that route because it was too difficult to handle all the confusion.
Love withers under constraint; its very essence is liberty. It is compatible neither with envy, jealousy or fear. It is there most pure, perfect and unlimited when its votaries live in confidence, equality and unreserve. -- Shelley
Mags (poly, F, 60) loving miss pixi (poly, F, 39) since January 2009, living together since 2013
also loving Punk (monogamish, former swinger, 42, M) since Oct 2015
"Master," (mono, 34), miss pixi's Dom for 2 years