Haha OP is so sweet.
But seriously OP, he doesn't act like how most guy does - at least from my experience as one - with "just friends" when he's around you. He could be terribly leading you on, but that's just not a thing guys do usually (more often girls are foud doing that).
You're stepping up into each other's comfort zone, when you hug. It's not nothing. And anyway, he initiated it two times; I bet it's now safe for you to just hug him (okay, maybe not too strong, and maybe the kiss-on-the-cheek stuff would be too much but then again I don't think so).