You and Five have been attached by the hip ever since you could think. You two were best friends and did everything together. When he protested against Reginald and wanted to time travel, he took you with him. You two were stuck in the apocalypse together. You two worked together at the commission and you two saved the world multiple times. You were both working at C.I.A in the new timeline and even lived together in an apartment. When Five got his powers back and accidentally teleported into the magical train station, he took you with him later to show you. You both tried it out and went to another timeline. When you tried to go back, the train slipped your stop and continued. Five panicked at first but you calmed him down. That's how you both got stuck there. You two traveled through timeline to timeline and the one thing that you two noticed, was that you were best friends in every single one of them.

After dozens and dozens of timelines, you two were standing in one and once again watching yourself do something together in a different timeline when Five breaks the silence.

Five: "Were friends in every single one of them. Doing everything together with entity, dementedly meant to be infinite."