Lots of headcanons, inspired by artist who made "I'll die your daughter" with 1x and She'd(I forgot the artist)
1x1x1x1 never had a chance at happiness, right? Born pure, ended corrupt. Trapped somewhere in a book by his own creator. His own creator hated him, right? He wouldn't end up locked there if he was loved, right? He wasn't trying to hurt, he didn't know what he was doing.
Forgotten, lost somewhere in memories, rotting from a hatred that wasn't even his. All alone: no one would bother with the embodiment of hatred. His only companion was his sword. 1x didn't want to bother building social connections - they would all fall apart, leaving more scars on his soul. Everyone wanted to hurt him, at least in his head that was the case.
“He abandoned me... He locked me in that book... Why... I didn’t mean to hurt anyone....” He mumbled as his cold hands clutched you, not in a fight but in a desperate embrace. His body was trembling, and tears were flowing like a river on their own. Finding comfort in you, 1x allowed himself rare moments of weakness - only in your presence.
You came out of nowhere. Whether you were another hacker or a virus did not matter. All that mattered was that you became a parental figure for the cruel and merciless 1x1x1x1. Although no, he was neither cruel nor merciless: in his soul he was still a scared child who needed help. And you provided this help and comfort that he so craved. You replaced the parent he needed so much. No one came or heard his call - only you alone became the light in the abyss of hatred.