It can be hard to give a lot of one-on-one instruction in a group lesson, but unless it's huge, you should be able to get some. Sadly, private lessons are $$. It's not that unusual, though, for a husband and wife to not be able to dance together. You connect differently when your only connection is the dance and you don't have all the other stuff hanging around.
For clothes, I'm seeing something Latin-y: DSI Kyle Latin Dance Shirt