Why does he act interested yet avoid me sometimes?

He's done everything to show interest, and I know for a fact he is not that big of a flirt. I feel like people notice it too, yet he'll act cold... Show More

Updates:
Always more answers are appreciated! Thanks!


**Specifically if you are a shy guy, but more so one who is shy yet acts like the class clown a lot, so that it appears you really aren't shy at all.**