Time travel. One of the things he was never a fan of, which came with good reason. Taking in another 'deep breath,' he kept his attention on his current project. It was still very important to him.
"Why not?" The robotic man kept his eyes on his work, but there was a ting of resentment in the question. "She has been here for at least the last three years. She has formed relationships with others here, weather they were romantic, parental, or platonic." His work stopped for a moment as he turned his head back towards the mage, his eyes narrowed. "Who am I to come back in to her life, like some kind of wrecking ball, ruining everything she has accomplished?" As he spoke, his attention when back, and sparks flew quietly as he finished up his last bits of work on this project.