She Shall Have Music — ReGina Welling

It's bad enough having to deal with other people's emotions, but when you can actually see them -- life becomes one long series of too much information.
Aura reader, Amethyst, sees everyone around her through a lens of shifting colors and lights. Resigned to knowing more than she should about those around her, Amethyst does her best to be of service to others. Never in a million years does she think her ability could actually save a life.
When the one person she never expects to see again turns up after three years, and drops a personal bombshell, Amethyst is forced to reevaluate everything she's ever known. Now, in the midst of a helping a best friend solve a mystery, Ammie will be given an impossible choice, and a task that will stretch her aura-reading capabilities past their limits.