>>34260984Difference in Serena and Lillie is that Serena is aware that she wants Ash's dick. Lillie is pure and young and doesn't know much about love, but she does have pure love/affection towards Ash. Which makes sense since both Ash and Lillie are just 10 years old. It's not about wanting to have a date because they need to set it up, Ash already spends time with Lillie without having to think about it.
>>34260985Serena never got to know Ash in his worst since he is always portrayed as her prince who is always right. basically she was kissing his ass the entire time. While Lillie falls in love with Ash despite his failures and clumsiness.