No More Darkness by Stacey Wilk

Wedding Planner Aria Scirocco has her life on track after her divorce. She’s engaged to a stable and pragmatic man. Her company is doing well, and her biggest client is getting married this weekend. Nothing can jeopardize all her hard work. Except a snowstorm derails her plans and dumps her ex-husband and their unfinished business in her path.
Hawk Egan wants his ex-wife back. When the storm strands Aria, he jumps at the opportunity to come to her rescue. Getting stuck in a hotel without power is a bonus. As long as the snow continues to fall, he has a shot to make her love him again.
For the first time in her life, Aria takes a chance and invites Hawk into her bed. But when the snow stops, and the power comes back on, she will have to choose between the man who lights the way, and the one who has left her in the dark.