What did he mean? What did he want?

I used to chat with this guy on Facebook. . We used to chat like mad for the first4-5 days and I had started liking him for the person he was..
I had not posted any photos of mine in Facebook so he asked for one and I posted my photo..
He instantly liked it, complimented my looks and we were back to our chatting. . he always used to flirt and all that..
The next day he asked for my number and to Skype him.. I refuse d because he still was a stranger..
And since then he has not replied to any of my messages..
What do you all think that he wanted? Did i do something wrong?
What did he mean? What did he want?
Add Opinion