My wife and I got certified together and have done all of our training since then together, including instructor training. Just remember to let her be independent in the course. If you try to help out too much, then she won't benefit. That's been the most difficult part for me because I'm naturally protective of her. But knowing that she is self sufficient underwater makes me feel better. I have also had couples as student divers in classes that I've had to talk to because the male half was doing too much of the work. For me, usually the first talking is enough to avoid splitting the couple up. I'd rather them learn to work together yet be independent.