Ellie is definitively a manipulator.
It is the one who pushes the others to the fault.
Dylan :
Ellie deliberately chooses her brother to fix her pc
She gives a lot of details about the content, a future temptation for Dylan ?
Sophia :
shower : she asks to take a shower together
club :
shower :
spa :
she invites Patricia, then when Sophia and Patricia are chatting, she asks them to look the 'big tool'
Emma : day 13, it is the one who suggests to go shopping to spend a mother-daughter time
then Sophia invites Emma, Ellie is a little disappointed, she gets excited when Sophia tells that Emma want to try something new.
At the clothing store, she's the one asking bras and panties ( I don't think Sophia was thinking about underwear for Emma )
and after suggest to go together in the changing room
then Sophia to get naked
etc. I stop because it will take too long
But I (we) could give dozens of examples.
It is after Sophia, the character who could most triggered hot events