Can you please give me a hint?

Hi, I did give you one.

Not really. You told me something I already knew.
...
I want to know who you are.

I do not see why.

You intrigue me I guess...
Never mind.
Forget I said anything.

(Read)

Bye

I'm afraid.

What?
Why?
Hello?
Hey!
Answer me!
...

(Read)

Katsuki threw his phone across the room and it hit his wall before landing on his bed. He didn't understand why he wanted to figure out this person's identity so much. Why was this mystery boy afraid? He had no idea.

Shoto was at Nicholas' apartment helping him clean up a black eye and a cut. To be honest he didn't really know why he was so afraid of telling Katsuki.