He wasn't really sure how this had started happening in the first place. For a while, he convinced himself the feelings were from too little sleep, too much booze, or perhaps even both. It wasn't as if Erwin didn't want to deal with the feelings, but feelings were something that never came quite as easily to him as it had to others. [Erwin/Levi]

Levi doesn't believe in fate - immortality is a cruel mistress he knows all too well. Yet, over the centuries, Levi finds himself drawn to various incarnations of Eren and realizes that sometimes the pull of a bond is stronger than anything in the known universe. Will Levi persuade Eren to be his, or will he be damned to continue his immortal life alone? [Ereri. 1792 - canon]

They say the winners always write the history and most forget there are two sides to every story.