Translation of undeceive in German

for a minute I blamed the burger that I had eaten at the duty free back in Cancun, but thinking a little further I recalled eating street food the night earlier, as it was Mexican independence day.
First of all they gave me some chicken, which the mother has cooked especially for me. Well, the bizarre thing was that they did not join me while I was eating because I had a different meal.
We considered staying a little longer in this region but the weather forecast foresaw heavy winds and lots of rain. We therefore decided to move on to our next destination which was the Peninsula Valdes.