<human>: Can you condense the text into a few key points?

Basically this girl is having friends over for a BBQ and everyone was invited through Facebook but I don't use Facebook so I don't have an account therefore I didn't get an invite.

When one of my friends asked if I was invited I said "yes" he then asked when I was invited and said the girl invited me on Sunday (the last time I met her) when a load of people came up to my house whilst drunk but she didn't actually invite me. If I had mentioned it she would have invited me but I forgot so instead I stupidly said she invited me to save face in front of my friend.

I am worried because I'm gonna end up turning up with someone who was invited and she be surprised to see me but refuse to let me enter. 

I am hoping she won't mention it as she probably would have invited me if I had Facebook.
Maybe she will presume she was so drunk that she just forgot about inviting me on the Sunday which is when I lied about her inviting me.
<bot>: I have invited myself to a BBQ that all my friends are invited to which I mostly likely would have been invited to if I had Facebook. I am worried it will make me look bad and will be brought up at some point.