Depends on that person's privacy settings.
If writing someone that you are not friends on Facebook they will still get the message. The message sometimes go the "other folder" and not the "inbox folder".
To get the answer to this you need to look at the Facebook security information.
They actually can, but it appears from a person with no link (i.e. name is in black) and no photo
When you send a message on Facebook, your message is private between you and the recipients. It will not appear on the recipient's wall.
Yes
see if that person is still in your friends list, if not the they deleted you.There is an application in the web that lets you know who deleted you from your friend list. It is called the Unfriend Finder. This powerful application has the following features:Track your pending friend requests .Notify you when someone rejects your friend request.Notify you who disabled their Facebook Account.And Finally , who deleted you from their friend list.You can download Unfriend Finder in this site:http://www.unfriendfinder.com/When I was installing the application. I had a hard time installing it as it is kinda tricky so this guide I found on Google might help you:http://darktips.com/find-out-who-deleted-you-in-your-friendlist-on-facebook/
Yes
Message or massage? If you mean massage then yes, if she would let you rub her i think she would like you. If you mean message as in text or message on Facebook then she just wants to still be friends.
No, if you block someone on Facebook, they can not see any of your activities
Usually if the message is still marked D, they haven't read the message yet.
Just by writing to them as if they were there, they will still get a message from you. Some are set up to be sent to their email.
Yes. If you do not have them as a friend yet, you can still send them a message which only they will be able to see in their inbox. They will also be able to reply to you and you will receive their responses in your inbox which only you will be able to see. Both of you will need to have facebook accounts to be able to do this.