I'm still planning for step two and three but as for step one:
Timothy -> Qiu:
In the full game, I want to try to make Qiu and Timothy as childhood best friends first lol. Timothy's interactions with Qiu consist of teasing and bantering. He's comfortable with platonic physical affections with Qiu like hugging . As time went on, Qiu started to pick up some cues from Timothy like they can read each other's minds:
Qiu: He wants to order a burger-
Timmy: :0 *gasp* ! :)
Qiu: -with no pickles!
Timothy -> Tamarack:
These two are the agent of chaos lol, Qiu has to be the 'caretaker' in the trio. Timothy would encourage and entertain her any plans as long as it doesn't hurt anyone:
Tam: I think we should take care of these frogs
Qiu: Please don't
Timmy: Mm.
Qiu: No Timmy, we're not bringing them to class too
Timothy and Tamarack were friends but has a crush on her when Tamarack took care of the scars on his palm from scooter accident, plus she looks very pretty. But at that time, Timothy's crush definition is more innocent, since he has big admiration for her so he has a long way to go.