Amazement.

Its amazing how one little sentence from someone...well, it was more like three sentences tied into one idea can make a person so happy. You can get into a 2 hour argument 3 hours after the sentence, and you can completely brush it off afterwards because of one little innocent seemingly pointless thing a person said to you. I feel like an idiot. 

I also feel like an idiot for a certain safeway purchase I made.  :P