Collide - The Collide Series, #1

Three simple words were all it took to change their lives forever. Losing a loved one is hard. Learning to survive in their absence? That's even harder. For Gemma Michaels, life had become difficult following her brother's death, but the one thing that kept her afloat was the one thing she knew she shouldn't have desired - her best friend, Ben. He'd made a promise to her brother - to protect her, no matter what.
For Ben, that had meant that she was off limits. But then she slips and tells him the three words he's been waiting to hear. Love happens when you least expect it.