What is wrong with me!!

I gave up carbonated beverages of all kinds (including diet).  I started on the second of Jan.  I did great till about the 20th when I took a trip to the grocery store and found myself on the isles with the all the soda.  It was as if they were calling to me. I couldn't resist and I ended up with a cart full of soda.  I bought 3 2 liter bottles  and all three of them were gone by the end of the next day.  Grrr.....Why do I loves soda so much!!!!