*single-hearted: sincere and undivided in feeling or spirit; dedicated; not reflecting in mixed emotions.
Everything Eliza did, she did single-heartedly and gave her full one hundred percent. To her all things could be viewed in black and white, there was no reason to be divided or conflicted in her emotions. Except lately Damian had been testing her, prodding at her buttons and trying to evoke a response. He was certain no person could be so single-hearted, yet she remained unfazed and sincere in all her actions.