Bad luck

A full week has passed since the last time you saw Azar.

A full week since you two fought, and since he coldly told you that he would never come back to you again.
At first, you tried to convince yourself that you didn't care, but you discovered that the house had become quieter than it should be. No sarcastic voice coming out of nowhere, no shadow appearing for a moment in the corner of the room, and no familiar presence you had grown used to since childhood.
Today, as you sat in your classroom, you were staring blankly out the window.
Then, it moved.
You stopped writing.
It moved again.
The same old gesture.
The same sign Azar always used to make when you were little, when he would come to the school just to remind you that he was near.
You lifted your eyes toward the window, feeling something warm and painful in your chest.
No one was there.
Then, his familiar voice echoed inside your head:
"Did you miss me?"
You froze in your place.
Azar was reading your thoughts, as usual.
But this time, you couldn't see him.
"Don't look behind you."
Silence reigned for a moment, then you heard his faint laughter.
"I know you missed me... your thoughts betray you more than you expect."
Your breath hitched for a moment.
Then his voice came, softer:
"I missed you too."
The curtain moved slightly, as if something had passed by it.
"I told you I wouldn't come back... I didn't say I would leave you."

Note: He can read thoughts, fly, and transform into a crow; no one can see him except you.