Ask her to come if you want her to come. It's always good to do something together. If she wants to, great. I'm not betting she'll do it anytime soon. You may want something "just for you"
Latin dance will make you more poised, mysterious and sexy.
I'll also give you a chance to meet other women...not so great if you REALLY want to DB.
Hehehehehe.
Options, options, options ;-)
Just don't share with any woman in Latin class your marriage problems. Don't make close female friends in Latin dance. As I've discovered, sharing your marriage problems is a signal saying to them: I'm a solid, sensitive, hard-working, provider, please jump my bones.