My crushes best friend teases us when he's around?

[Alexandra]

Well I've had a huge crush on a boy at my school for about 2 years now, let's call him Luc, and most of the people in my grade know about it, including Luc himself (I told him a year ago), and for a long time, it's just been unrequited love. But this school year, there's been more and more action between me and him, little glances when we're around each other, blushing and smiling, etc. Now onto the actual problem:
So, Luc has a best friend, let's call him Austin. Well a few months ago, I had posted a status on facebook that mentioned me having a crush, and Austin messaged me about it, asking who it was. I told him, since everyone already knew who I liked. He was like "oh really?? Aha that's cool" and we didn't really talk about it after that. But starting a little while ago, every time I saw Austin and Luke together, Austin would shout my name and wave at me and he'd obnoxiously point to Luc (while Luc usually just stood there smiling and blushing). At first I would get kind of flustered and embarassed , but now I just go along with it and I smile and wave back. Then, recently, I had posted a picture of me and one of my close guy friends, and Austin commented "Luc will be mad" and that's all he put. I didn't give it much thought.

Finally, just a day or two ago, I posted a status saying how I needed someone to come watch Paranormal Activity 5 with me. My friend commented saying they would go whatever, but then Austin commented, with only Luc's facebook account tagged, then posted another comment directly afterwards with a question mark.

So... my question is, what does all of this mean?

Is Austin just trying to tease Luc and make him mad? Is he doing it because Luc LIKES me? Is he maybe trying to set us up? I honestly can't tell.

The picture Austin commented on: http://i.imgur.com/S7NaP9I.jpg
The status: http://i.imgur.com/ltmiiKF.jpg

[Allan]

I think he is immature. But it just so u know it really is funny when u see the two of u blushing