@oristarA,
Quote:1) the identities are false, but the two underage girls are real;
2) the identities are false, and the two underage girls do not exist in reality.
There is nothing to suggest that one or the other of these is the case; one may suspect the second. To use the real names of underage girls online might expose them to unwelcome attention from e.g. stalkers and would be irresponsible.
Quote: does "Like is my life real" mean "for example, is my life real"?
"Like" used in this way is a meaningless word, a discourse particle, filler, hedge, or speech disfluency, much used by initially teenagers but now just about everybody wanting to be 'casual' or 'cool' or 'down with the kids'. It originated, I believe, in the slang of 1950s beatniks, and was spread later by the popularity of' 'Valley talk', originally 1970s teen California sociolect, but now widely used.
One suggested explanation for this phenomenon is the argument that younger English speakers are still developing their linguistic competence, and, metalinguistically wishing to express ideas without sounding too confident, certain, or assertive, use "like" to fulfil this purpose.
Examples:
He's, like, tall (He's tall)
It's, like, hot today (It's hot today)
I'm, like, here (I'm here)