I'm sorry for your loss, PB. Any feelings you are having are the feelings you are supposed to be having!
It is truly too bad your gf has such a mono mindset that she broke up with you after 3 years just because she is newly interested in some new guy. Sadly, it sounds like she really just wanted a mono boyfriend the whole time.
And she doesnt plan to tell anyone she might date that she was in a V for several years... No wonder you feel so hurt and disrespected and can't picture continuing to be friends with her.
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
me: Mags, 59, living with:
miss pixi, 37