About a week ago, my parents recieved an invitation for my first cousin's (my dad's nephew's) wedding. The invitation was adressed only to my father. We all thought it must be a mistake or oversight, so my dad called my aunt (his sister) to verify if my mom (my dad's wife) was also invited.
Turns out, my mom is not invited. To be fair, it is a very small wedding. It's in two weeks and will be at the courthouse with a restaurant dinner to follow. My aunt said that my cousin wants to keep it as small as possible. However, we still feel like my mom should've been invited too. My mom's feelings are a bit hurt considering this is also her nephew (albeit by marriage rather than blood).
Would you be insulted? This is poor etiquette, correct?