Your long haired wife suddenly standing in front of u in a bob must definately be a big surprise for u. I can totally understand !!
I am sure your wife would be grabbing a lot of attention these days, she would he like centre of attraction whever she goes. Also people will talk about her being modern and liberal considering her short hair and sexy looks. But u should jot be bothered, u should be proud that you have her for urself and should flaunt her.