Most Helpful Guy
Several Questions comes across my mind if he was to ask you that.
A. Did he even think and consider the consequence dumping you deleted you and unfriend you
B Does he still like you since its a message Anyone can send that.
C. Is he serious asking you do want to be with him. (as in Are you serious?)
As you i think you should ask him Why he dumped you deleted you and unfriend you. And ask him if he's seriously or joking Do you still want to be with me? after you replied him back and he not replied you back.
D is he making you a backup plan? since he deleted you on Skype and unfriended you on facebook there might be a chance he's asking another girl out and making you out of the list of evidence that you previously dated someone?
Maybe im over guessing things