@ReviitZ
Aria wanted to seduce Oscar for two purpose :
First, to make Mielle miserable
Second, to change her destiny
But, even if Aria didn't want to admit it, she's alone, stressed and afraid of her futur, she somehow start to like Oscar without realise it because of her insecurity and when he left her, she feel distress.
Aria have live a life when people use another, she honestly didn't understant genuine love, she already like Sarah but didn't know too.