To start off my mother and father have been divorced for over 20 years. My dad and his girlfriend have been together for about 20 years, it's understanding why my mom doesn't like my father's girlfriend. To be honest I don't have a problem with her but don't have a connection and when we do speak it's a the "hey, how are you, oh okay, love you bye" conversation. Because we don't have a real connection I don't have a invite for her. When I sent my dad's invite I only addressed it to him. So when he called to ask me the same information that is on the invite, I knew he was right in front of her. So now she thinks she is invited and my mom is boiling hot. My mom is asking for one family event that she isn't there and I agree.
How do I tell her she wasn't invite? Do I make my dad uninvite her since he invited her? Should my mother and I suck it up.
TIA for any advice