I would venture that from your earlier posts here, that your wife hit the head on the nail about your discussion with your parents. Even here you mentioned your actions, but didn't really accept responsibility for them (or the effect they had on your situation). Now that is the past though as you have opened your eyes to what happened and the affects that they have had on the relationship. You owned them instead of saying you did them because of x, y, and Z....That is a big deal.
If you see the behavior in your dad and your wife pointed them out in you....Then you can almost guarantee you were doing the same thing as your dad. You grew up in a household were that behavior was acceptable, so to you it was acceptable. You probably didn't even realize your were doing it. This is really DB bread and butter type stuff though. Now that you are changing and working on yourself (looking into the mirror as I like to think)you can work on your communicating skills. These are the type of changes that HAVE to stick. She is probably waiting for you to go back to old behaviors....Be thankful as your wife gave you a big nugget of gold on this one.
Socializing after all this is hard....Just keep working at it. As for the next four days....sounds like a great time for a field trip to the beach or something like that.
As for her impulsiveness...Has your wife been diagnosed with ADD? If she has, you might want to read up on ADD and adult relationships.