Follow up: I just fed the twins and their family dinner. The BIT BLUE twin is back to elated and her health bar is full. Fortunately there was another desensitization kit in the store so she is also rid of her dislike for eating.

Arnie, that is an interesting theory about the one twin not happy because she was different from the other twin and one I hadn't thought of, but if so, why didn't it affect both twins? Even so, it may have contributed to her sad situation.

This brought home to me that anytime one of the little people has a dislike of eating, or for that matter sleeping or anything else that could possibly interfere with their health and happiness, to get rid of it as soon as possible!