Could boys possibly be that shy to not accept a friend request on Facebook?

Is that possible? This guy was staring then looking away , trying to impress me and he knows who I am because we've been childhood friends. He accepted my best friend's request , but he didn't accept mine :/. I'm not sure he likes me like I like him but he's been showing all the signs and I just felt like it at some point. Too long to write it all here ... anyway. He accepts everyone . He can't be hating me right ? He is known to be a shy guy , but also one of the cutest boys around..
Could boys possibly be that shy to not accept a friend request on Facebook?
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