First of all, compass is 100% correct: yours and your wife's are 2 separate apps., even if you mailed them together
I was told by the IO several times that women in most cases don't even go through a name check! And I guess the fact that my wife's interview was almost a whole month before mine proves that. Her interview was EXTREMELY smooth. Part of that is because she has not worked for the last 5 yrs., has NEVER had any traffic tickets or brushes with the law, etc. Infact the DAO was joking with her at the end of her int. saying "you have never even been pulled over ?". He was surprised. As far as questioning on the GC stuff: Well, she was questioned quite a bit about HOW she got HER GC, how long she's been in the U.S., what I was doing, how I got MY GC, etc., but nothing about my length of time with the GC co. No, she has not gotten an oath letter yet - I think San Antonio is just freakin' slow with oaths!
As far as you not receiving an int. date, well.......... hunker down and be
prepared for a long wait. The sec. checks are elaborate and depend on where you were born, your nationality and name. Needless to say, if you are Muslim, Chinese, or east European it's going to be a long wait.