Hello there!
My friend has a recently acquired two month old corn snake that's having a little trouble eating and some advice on the matter would be greatly appreciated.

Background: The corn was being fed every five days, eating small fuzzy rats. She's eaten three times and last week on feeding day she regurgitated. Food has been offered to her the past two days (about a week since she regurgitated). She shows interest and strikes at it but gives up after a try or two. How often should food be offered to her if she isnt eating?

Temps: 85 degree hot spot, room temp ambient (about 72)
Humidity: natural room humidity (we're from colorado)