What does his behavior mean?

I developed a crush on this dude in my class and decided to stalk his FB only to find everything set to private. So I created a FB profile using a random girls name (but went to the same uni) and added him. (I just wanted to see his pictures dammit)
He accepted and asked which grade/batch I was from.
I said I was from the same batch as him and here's how it went from there:

Him: really? Cuz I never heard ur name.
Me: yeah, maybe cuz this isn't a genuine account, but please don't unfriend this; there's no malicious intent behind this.
Him: may I please know your name, if you don't mind? Or at least where do u know me from?
Me: I'm sorry lol I can't tell u that
Him: I'm just curious.
Me: it's natural
Him: what do you want?
Me: nothing.
Him: Goodbye then, plus don't send everyone friend requests its not healthy. He then blocked the account.

I decided to move on from my little crush.
Also, ever since this FB incident I made it a point to not gaze at him longingly cuz he'd find out THE FAKE FB ACCOUNT was me, but.. once he noticed me staring at him.
I was talking to a friend at that time and wasn't even paying attention to what my eyes were fixated on, but soon I realized I was staring into his soul and he was staring back with a quizzical expression on his face. I darted my eyes away quickly.

After this I found him staring at me many times. He'd always notice me when he'd enter class and got kinda awkward around me (he's really shy and can't even give a presentation in front of the class). I have a feeling he knows it was me.

Anyway, I forgot about this whole thing cuz it wasn't going anywhere... but now I've noticed that: he dresses up better around me and HE HAS UNBLOCKED MY FAKE ACCOUNT ON FB. What's that supposed to mean? Why go through the hassle of unblocking a fake fb account?
What does his behavior mean?
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