Welcome to the Forum. The exposures that you describe were no risk exposures which carry no risk for STD acquisition. Specifically, there is no risk for STD (or HIV) from kissing, no matter what you kiss and no matter whether the kissing was "deep" or not. Thus there is no risk that you may have transmitted something to your wife.
As for the spot on your lip, I agree that this sounds like a cold sore.
Neither you nor your wife are at risk for anything, nor do you need any sort of testing. I hope this comment is helpful to you. EWH
I know that I am probably just being paranoid due to my fear of catching soemthing, but just wanted to make sure that I had given you all of the facts. Thanks for all of your input.
If you can be so kind as to answer my questions, I will be done posting. Thank you again for your help.
This will end this thread. eWH