Facebook message? Crush? HELP!!?

[Katie]

Inboxes this guy on facebook 2 days ago. Usually when you look back at the message it says "seen" once they've read it. But it doesn't say that. The guy should have seen that he has a message off me cause whenever I go on facebook, it always says things like "active now", "active 16m ago", "active 53m ago" beside his name (on my FB mobile). So my question is why do you think he hasn't replied. Do you think he's read the message and then ticked "make unread"? In the message I poured my heart out to him cause he knows I like him and I asked if he felt the same way about me. Blah blah, you get the gist of how the rest of the message goes. I hope lol. HELP!?