[She doesn't hit him again, but for the very first time since they've met, probably in forever, she raises her voice, with all the instability you'd expect from an eighteen year old girl who's just had her emotion switch tripped and has no idea how to deal with this.

So, quickly, like for real in a single breath, hiccuping aside;]

Because -- w-why do you hate me? I've been doing my best because I wanted to make you happy, because I like you -- I-I was nearly happy, being with you and Mr Liam and Christopher, I ignored everything else! Your lying and your low self-esteem and I believed that you were speaking honestly with me then but you -- said that --

[And she cuts herself off like she's just remembered you need air to talk. Note the present tense on "like."]