I just finished reading TIME TRAVELER by Dr. Ronald Mallett, a physicist on the faculty of UConn. Dr. Mallett's father died suddenly when the physicist was only ten years old, and his life became a long, introverted, and not always happy journey to find a way to see his father again. Science fiction like H.G. Well's The Time Machine and Star Trek encouraged him to research the science behind the theory of time travel, and research he did. Using the GI bill, he delved into topics and math that sound incomprehensible to me. Yet he has a knack for explaining theories in simple terms that give me glimmers of the brain power behind his work.
Parallel universes, bending light, tensor calculus, all seem more important to Dr. Mallett than real people interaction. Driven, and I mean driven, by his desire to see his father, he suffers periodic depressions and a divorce. When he's deep into his work, he's clearly the happiest. I feel sorry for him in a way, particularly since he's painfully aware he's unable to form friendships as a youth, and romantic attachments as a young man. Living in his head produced brilliant science, though not an especially happy life, it appears.
He does find a measure of peace when a scientist he respects a great deal tells him that while he may not see his father again, his father would be very proud of him. The story of his journey to discover how to time travel is both human, melancholy, and triumphant. Give it a read.