I Saw It in the Mirror - Frederick & Brady
When he was a child, Brady read a book about a man who traveled through time to his own past. The book ended rather unhappily when the time traveler accidentally killed his own past self, and no gory detail of the agony the time traveler felt as he blinked in and out of existence was spared as the poor man was trapped in a temporal loop for eternity. Brady was aware that his current situation was different; he wasn't so much a time traveler as a timeline traveler, he knew that the past he was inhabiting was a separate past from his own. Still, there were enough parallels between his situation and the fictional time traveler's to make him uncomfortable, so he devised a set of rules for himself to ensure he wouldn't mess anything up too badly. Like he usually did.
The rules weren't complicated; they were really very simple. Don't interfere with the going-ons of anyone from the new timeline, don't get anyone killed, and most importantly, don't let Ma and Pa know that they're destined to be together. At least, not until they'd figured it out on their own. Brady was no expert at romance, but he figured that few things were more likely to sour a relationship than being introduced to your spouse and child.
Brady had had to prove that Maribelle was his mother to join the Shepherds, which meant that he had no choice but to keep his distance from his father. It was hard for Brady. Painful, at times. Brady was a sentimental soul, and treating his father, the man who had raised him and loved him, like a total stranger was heartbreaking.
Perhaps he wasn't as careful as he told himself he would be. There were glances which lingered for far too long. Walks which somehow always managed to take him past his father's tent. That time he broke down sobbing in Frederick's arms.
This evening, for instance, he was sitting under a tree a short distance away from Frederick's tent, quietly plucking at the strings of his violin while he stared at the space where he knew his father was. The crisp air carried the notes further than Brady had intended, but he couldn't muster the will to care. He wondered if his father had already begun courting his mother. Would it be safe to reveal himself then?
Brady dragged his bow lazily across the strings. Melancholy was supposed to be good for the musical spirit, but Brady didn't think it was true.