Why won't my boyfriend mention me?

Okay so on his facebook, where you can say what you're doing or thinking and everyone can see, he has mentioned me on that.

But on his status update on MySpace he still has not mentioned me once on there and he won't get on his computer for 2 minutes to just put me on his top friends. It kinda feels like he doesn't want someone to know on MySpace that he is dating me..

But that can't be it because he changed his relationship status to in a relationship and I comment him and he comments me & his comments aren't private so what's up? why won't he mention me on MySpace but he will on facebook oh and he's only mentioned me once on facebook and won't mention me again since he did that once.
Why won't my boyfriend mention me?
Post Opinion