Brilliant Heart by Ellie Pond

The Doctor thinks she’s immune to hot shifter pheromones, but she has never met her fated mate before…
Tad Larsen took his brilliance to the city and made billions. Now his mother has ordered him home, she’s a real witch like that. A secret witch, and when she asks you to do something, you do it. That’s how he ended up babysitting his adult cousins on a cruise ship for shifters; That’s where his bound magic is let loose. Now he’s no longer just a wolf shifter but a mutt. But does the mutt need a mate?
Dr. Elizabeth Cottage doesn’t need a guy, her research and patients consume her precious hours. But she never expected to find a fated mate. Now what will she do? Give up her beloved ship and follow him, or give up on the love she didn’t realize she wanted?
Can Elizabeth and Tad get out of their own heads long enough to see what their hearts really want?