I just realized this Thanksgiving I have been with my DH for 12 years, married for 7 and honestly I barley know his 2 sisters. I can tell you a bit about each of them but I don't think I have ever gone out to lunch alone with them or shopped alone with them. They do live in different states, but any messages are always relayed by DH. I could tell you a little about my SIL's husband, like 2 things and they have been married 8 years. Is this unusual? Am I mean/horrible? To be honest, neither party seems all that interested in getting to know the other..