Since when they decide to date?

I don’t remember them saying they were, I assume he was joking?

The ML basically proposed didn't he when he told the puppets to be useless and rude as long as he stays with him.

But in reality it's just platonic soulmates so far lol.

they havent. acc to heesung, they are just partners in revenge.
but for chiyoung, they are partners period.
also heesung knows abt his feelings and yet he doesnt seem to object...as much...