I would listen to the song I think it fits Charlie really well :)

///

???:
Good morning Charlie!

Charlie:
Who the hell are you? 

Ace:
It's me Ace? From math class...

Charlie:
Oh you. How the fuck did you get my number?!

Ace:
Umm I asked one of your friends?

Charlie:
I don't have friends! Are you a stalker or somethin?

Ace:
Fine I looked over your shoulder in class
and saw your phone number.

Charlie: 
1. that's just fucking creepy
2. why the hell did you want my number
and 3. what do you want before I block you

Ace:
WAIT DON'T BLOCK ME! It's just I wanted to be friends with you
because you seem lonely in school.. :(

Charlie:
Yeah it's because I like being alone.

Ace:
Everybody needs a friends! :D
And I'm going to be your first one if you like it or not.

Charlie:
Yeah okay I'm just going to block you now

Ace:

I'll just go on another phone and
keep bothering you so there's really no point

Charlie:
(-_-) Really?

Ace:
(^3^) Really really!

Charlie:
FINE! But if you spam me with 
memes I will kill you in your sleep

Ace:
(;-;) Okay finnnneeee....Bye Charlie

Charlie:
Peace out stalker