C.W.
My SIL is a lot like this and it drives me nuts. But saying something just makes it worse not better. Ignoring is the best policy. As for the name thing, sorry, I am on her side. There is no way of knowing whether you will have a girl. My husband and his sisters had name "reserved" since they were in grade school. Do you know what? Not one of those names that we were all forbidden to use was ever used by any of them. My first SIL never had a girl. My other SIL changed her mind numerous times because the initials just didn't go with her husband's name. And I didn't like my husband's picks. I can't imagine picking a name and being stuck saying it millions of times a day, just to get back at some one. Maybe she just likes the name. And at least someone gets to use it. First to have the baby gets the dibs on the name unless there is some kind of really special circumstances.