What does this mean? And am I imagining? PLZ?! IT'S SHORT! I PROMISE!?

[May]

I have a crush on a guy.. He knows I like him!
All the signs and his actions says he likes me! But he never talks to me or try to approach me!
He always tries to be in sight.. where I can see him and he can see me.. But I tend to ignore him

He's my brother's friend.. but they aren't that close!

He's 24.. I'm 19 yrs old..

He created a twitter account recently.. and somehow most of the things he's tweeting is kinda.. Related to my actions..

Like yesterday and the day before it he saw me walking by myself so he tweeted about how friends are easy to disappear..

Today he tweeted "I don't like to procrastinate, but then I remember that tomorrow I'll be older and wiser..."
What does he mean by that?

And am I imagining that he likes me? or there's a chance that he likes me?!
and if he does why won't he approach me? I mean what's he waiting for?

[pelican]

I think he probably likes you but he might think you don't like him.