Facebook Picture Dilemma?

[Christy]

Okay so a few months ago I made a fake Facebook account for a game I play because I didn't want anyone to know who I was due to stalkers on the Internet. So I make this new account and use pictures from another persons real profile. I don't know her very well but she is beautiful so I thought I would use them. I got the pictures off of her account then put hem on the fake one. She found out and I deactivated the account. She doesn't know it was me, and probably won't find out. But what would happen to me if she did find out it was me? Is this illegal in anyway? I never said anything on the account that was mean or giving out her personal info. A lot of people do this as well, so is there even anything that could happen? Btw please do not give me a lecture about what I did. I know it was wrong to use her pictures without permission.
I never even used her name, so how is that identity theft?
I never even used her name, so how is that identity theft?