That is definitely a different story. You absolutely shouldn't be made to feel marginalized.
Once you're feeling neglected and there is consistently no action (words are just words), it's time to start letting go, in my opinion. It doesn't make it any easier, though.
Me: 39 straight male in a V with
Wife: Kay - mono female - married 17 years
LDR girlfriend: Susan - poly female - 3 year relationship
Stakes - very intimate friend