I've been invited to a drinks celebration (a very formal one). My name is on the invite but not dh's. The person who invited me is someone I worked for about 10 years ago. At the time I was going out with dh and the person who has invited me knows I am now married to dh. I take it as dh is not named on the invite he is not invited? Is emailing to check rude? I'd go if dh went but I really don't fancy going on my own as I won't know anyone at all there. Any views?