One of my girlfriends from high school, who I still keep in touch with but was very very close with through high school and college is having a destination wedding. She is inviting myself and my husband (we know this because we share a best friend so our best friend told me today that we were invited) He can not come and I would not want to travel alone. Is it at all appropriate to ask her if I can RSVP for myself and my mother? She knows my mother and was close with her when we were growing up, so she is certainly not a stranger and my mom would love to see her get married. I wouldn't do this if it were a local wedding, honestly probably even if it were in the immediately contingent US states. But traveling to outside North America...I would be more comfortable with a partner. I certainly don't want to miss the wedding. Opinions?