Someone in Time by Jonathan Strahan

Even time travel can't unravel love
Time-travel is a way for writers to play with history and imagine different futures - for better, or worse.
When romance is thrown into the mix, time-travel becomes a passionate tool, or heart-breaking weapon. A time agent in the 22nd century puts their whole mission at risk when they fall in love with the wrong person. No matter which part of history a man visits, he cannot not escape his ex. A woman is desperately in love with the time-space continuum, but it doesn't love her back. As time passes and falls apart, a time-traveller must say goodbye to their soulmate.
With stories from best-selling and award-winning authors such as Seanan McGuire, Alix E. Harrow and Nina Allan, this anthology gives a taste for the rich treasure trove of stories we can imagine with love, loss and reunion across time and space.
Including stories by: Alix E. Harrow, Zen Cho, Seanan McGuire, Sarah Gailey, Jeffrey Ford, Nina Allan, Elizabeth Hand, Lavanya Lakshminarayan, Catherynne M. Valente, Sam J. Miller, Rowan Coleman, Margo Lanagan, Sameem Siddiqui, Theodora Goss, Carrie Vaughn, Ellen Klages