Cripes...I think you and Robert are working way too hard.
There is nothing wrong with emotions, but they are not tools of cognition.
Healthy emotions are the result of healthy thinking patterns and experiences, and unhealthy ones, the result of unhealthy thinking patterns.
There's no reason to make this any more complicated than it has to be, but I suppose if it was seen to be simple, the psychatric industry wouldn't have anything to write papers about.