duvet, your story has really struck a cord with me. Well done for standing up for yourself. Its not easy and it does feel shit for a while.
I have a very large complicated family and I am the oldest of 10 brothers and sisters. I have always been made to feel unwelcome and that I'm causing trouble. Having read your story I can suddenly think of so many examples of when I have been pushed out but being excluded from a family holiday is exactly the sort of thing that would happen to me.
I have always been told that I have no right to be upset or feel excluded, indeed it is very selfish of me, considering the size of the family, its hard for my parents to spread their attention around...ect.
I had a bit of a breakdown at my sisters wedding last summer as I felt totally excluded and unwelcome, My step mother blanked me on the day. I complained to my Dad about this and he did not understand at all. He had this story about me in his head that my SM had told him and he did not even ask me if it was true just launched into a dialogue about how selfish I was and how I was failing to see anyone elses point of view and failing to be considerate to the rest of the family and making a scene and being embarrassing.
Several weeks later I received a letter from SM that really just spelt out to me quite how she believes the world revolves around her; she had leapt to all sorts of conclusions about how my behaviour was calculated to get at her... I could't actually give a flying toss about her and really could never be bothered to go to the elaborate lengths that she imagined I had gone to.
It really hurts me that my parents know so little about me but I am slowly coming to the conclusion that its their problem not mine. In the main I get on OK with my brothers and sisters, they don't understand how I feel. Though brothers 1,2 and 3 do agree that our mother is a mad old bat.
When my DH rang my Dad to ask for my hand in marraige (I know lovely and old fashioned :) ) my Dad asked him if he was sure, he explained that I could be very difficult, sulky and petulant... I thought it was funny when DH told me, now I find it sad.