Here is how I would handle her.
Saroza: "Okay, I've got to get to class now, maybe you'll get to see me later."
HB: "MAYBE, you'll get to see ME, if you're lucky."
Saroza: "You know what, nvm. I won't be talking to you later "
HB: "Fine by me "
Me: I got class now, I'll see you later

HB: Alright, see you too

Me: Done with class, where is your beautiful self at?
HB: I'm at x bla bla bla
That already eliminates all bullshit, she's going to respond based on how
I respond. Even though it's impossible, let's see how I would respond if she responded to me like that.
Me: Okay, I've got to get to class now, maybe you'll get to see me later.
HB: MAYBE, you'll get to see ME, if you're lucky.
Me: I just wanted to see you again because you're cute.
HB: (blushes on the other side of the phone knowing that something is different this time but continues to test you) Yes I know I'm very cute and you can't stand me.
Me: Oh ok, I was just thinking about doing some things to you because you get me horny at times

HB: (thinking oh my fucking god, he's acting really different now, should I take him seriously this time?) Uhmmm you're kidding right?
Me: Why would I be kidding.
HB: Because you can't just say something like that.
Me: I can and I'm just being honest. Come to place x after class, I want to see you later.
HB: (possibility that right now she is overwhelmed by sexual tension and gets serious, but hopefully she won't see it like that) You're creepy and weird.
Me: Oh ok
Case closed.