Is this someone that you're dating or someone you think may like you?
How old are the two of you?
The more info you can give me the better I can help
Lol, well I would give it more time. It could be a nervous habit where his perfectionist behavior might start to kick in since you will be competing soon. It may just be his nervousness or worry that's causing it. I wouldn't read anything into it just yet. You might playfully say to him "do I need to buy a lint brush? you've been brushing me off a lot lately, are you trying to tell me something?" laugh, and see what he says.
I welcome your thoughts, let me know if you want to talk more