DEAR ANNIE: I have a wedding invitation etiquette question. My niece is getting married and has only invited five of her six cousins. The one cousin not invited happens to be one of my sons. I am very upset that she has chosen not to invite him. We have not had many family gatherings since the pandemic. My mother passed last year, and the funeral was our last gathering. This niece no longer has any grandparents alive — only cousins, aunts and uncles — and this could be the only family celebration for quite some time. I know this is her big day, but to exclude only one cousin is very upsettin…
