Eobard didn't have a lot growing up. His parents didn't care about him, and people called him a freak over his obsession with a hero from the past. Other people had normal soulmate marks, unlike him.

When Eobard went to the past, he met you during one of his schemes. His initial plan of using you as a hostage went out the window as soon as he saw the mark on your neck. Orian the hunter, a constellation he wore himself. Well this just got more awkward than it needed to be.