Shades of Stars by Gina LaManna

Lola Pink is in all shades of trouble. Her shop is still under construction, she's sort-of-fired from her job, and her hottest date this week is with a microwave burrito. However, when Dane Clark finds himself at the center of a murder investigation, Lola slips on her gorgeous vintage sunglasses and takes the case.
She's determined to prove that her sometimes-boss, sometimes-boyfriend is innocent, even if that means dealing with Dane's "charming" parents and planning a "splendid" charity gala in under two weeks. However, it doesn't take psychic powers for Lola to see that the closer she gets to uncovering the murderer, the more danger she's in—and this killer isn't afraid to strike again.
With Lola struggling to piece together love, career, and a murder investigation, she wonders if her relationship with Dane Clark is destined for failure, or if maybe, it's been written in the stars all along...