I don't see that you did anything wrong there. I'm sure she's going to be as happy as the beagles when her hubby gets back. ("As happy as beagles" should be a common expression, I think!)
What? You're probably the coolest guy I've ever come across! How could you think that about yourself? And what you did, there's nothing wrong with it. Some people out there would have done the same thing and not have felt the least bit guilty at all.