Knowing you are done; any advice?

My 80 year old mother has early dementia and lives with dad. Mom has had narcissistic traits my whole life, dad is her enabler and older sister can do no wrong. I feel like I survived a horrible weekend of family mobbing and emotional attack. I think I reached a point where I am done. I suppose that’s where I’d like your advice, or perhaps I'm just looking for permission to move forward without them.

Relations with my family have been delicate for years. I remained engaged out of duty to my elderly parents. The tipping point was last weekend when my sister’s son got married. Shortly after I accepted the invitation, I heard sister was not happy I accepted and was going to un-invite me if I didn’t mend our relationship. A couple weeks later, my nephew called and asked me to do a reading at the service which I was honored and accepted. After that, things spiraled downward. Sister called telling me it was her son’s wedding and I shouldn’t attend if we were on the outs, and that I had no relationship with her son, and didn’t deserve the honor of doing a reading. Perhaps I should have bowed out, but I thought it would be too hurtful for my nephew. I told her there would be time for us to work out our differences, but for now let’s get along for her son’s sake. I told my sister she could un-invite me but it would be her choice. She said she wouldn’t do that, but then refused to tell me the location of the rehearsal dinner. Our voices were raised, my hands were trembling with emotion and all she kept saying to me was “listen to how bad your voice sounds.” I felt so berated. I told her I was going to hang up and I realized the phone had gone silent on her side. I believe it might have been that she silenced her phone and put it on speaker so her daughter could hear.

That was the last contact I had with my family until the day of wedding. I arrived with a smile on my face, and the bride and groom greeted me with a hug. My sister, parents, and sister’s daughter never even looked at me. I nervously did the reading and the whole thing went off without a hitch until the reception.

I sat at the table with my parents and looked after them. I tied my dad’s shoes. I took mom to the bathroom and reapplied her lipstick. After dinner, sister’s daughter came up to my husband and asked what her mom did to me that was so wrong. Fortunately, my husband claimed ignorance and stayed out of it. In the bathroom, a longtime family friend said she was sorry there had been so much fighting in the family – gossip which didn’t come from me. When I returned to the table, my sister’s husband walked by, grabbed my arm, dragged me into a corner, and got close to my face asking what was wrong. He told me my sister was really hurt. I had to put my hand on his chest to get some distance. I felt physically attacked. I wanted to scream, but smiled and said “thanks for your concern. We’ll work things out in time.” When I returned to the table, my dad told me he was going to get my sister so I could make up with her. I told him this wasn’t the time or place. He then told me I ruined the whole entire wedding. With that, I grabbed my purse and left.

I have not heard anything from them since, and I actually don’t want to ever see or hear from any of them again. I am prepared to have my life without them. This means I won’t be around to care for my parents. I just feel so abused personally and emotionally and want nothing more of it. Thanks for reading.