<human>: Hi, throwaway and slightly changed facts since she browses here.

Well I started talking to this girl on a dating website with this really old account I had from before that I just used to get laid, so I had a fake name on that profile for.. security reasons (some people are just crazy scary).
And well, now I've grown very interested in her and she seems to be very into me as well.

We talked very short on the website before exchanging Kiks, Skype and all that, so I actually didn't know until this night when she said good night and made a corny reference to my fake name. And so it hit me like a bowling ball.

We've met RL as well but never really called each other by our names you know (in my country you really never do unless it's very formal)

So how do I tell her that I'm actually called something else entirely?
I'm afraid that she will just think that I was going to use her for sex but got feelings or something, I really don't know what to do.

Could you distill the essence of the text into 1-3 sentences?
<bot>: Dating a girl that doesn't know my real name, only a fake, how do I tell it without hurting her?