I have a few friends who are not poly but single and often not dating. They rely on friends and a solid group of chosen family to go with them to staff parties, family events etc. I admire that they are in it together and regardless of their relationship status. Perhaps creating community out of friends and chosen family would help. Being creative about who is close to you might mean that your unfulfilled need is met more regularly and your relationship with your boyfriend can stay intact at the same time.
Anyone want to be friends on Facebook?
Send me your name via PM