Personally for me, I don't actually know the exact date or moment when I really made him my ult at all. I started out with Mark (because he made really bad eggs and idk I fell in love with that and somehow ended up with 20 other guys tp support too), but then I moved along to Doyoung for a SHORT while because he seemed like my type at the time. I think it was after Jungwoo went on hiatus that I started to realise that I seriously missed his energy. So yeah, I suffered for months with the bare minimum amount of updates we got from the members until he came back from hiatus this January. That's me. What about you??