While your husband's in UPT, you won't be doing a lot of stuff with the actual squadron. The students, although officially stationed at Vance, aren't really "squadron members" per se. The whole permanent party vs. student thing. The class has to take care of itself when it comes to social stuff. It will be what you make of it. Some classes do zero stuff outside of the flight room and some classes are like a frat house.
The initial cookout/boozefest is a great opportunity for the class members to get together and for the wives to get to know each other. From there you can exchange contact info and start hatching plans. Plan to have class parties for all of the "next steps" in UPT. (i.e.- academics complete, midphase checkrides complete, solos complete, track select, etc. etc. etc.
If the studs have something to look forward to outside of training, UPT will be easier for everyone.
HD