Don't worry about the interview until there's something to worry about. Sounds like you handled it VERY, VERY well.
My H in December told me that he got a call for a job in Canada. I told him that it sounded great! Obviously, I didn't think that, but I was being supportive of whatever he wanted. Well, two days later he mentioned the job again. Again, I thought it sounded great. A couple of days after that, he was recommending others...
Stay off that roller coaster. Don't worry about what your friends/family think. In fact, if I were you, I would keep the marital discussions with those folks to a minimum. I know you need support but oftentimes they are well intentioned but totally ineffective in helping you achieve your goals.