I second Zues's comment. If you post a picture of yourself and OW then your W will see right through it, she'll KNOW you're doing it to get a rise out of her. It will backfire on you. But post a few random pics of the concert and maybe some comments about how awesome it was and it's going to eat at her. She'll be dying to know who you were there with. She'll probably poke and prod and pry and eventually find out anyway so you don't need to wave it in her face. It's better if you don't. After all, it's none of her business, right?
