Darleen Dreamer (hidden)/theories

Who is this Darleen?
I was studying the file with the tumbnails, and I noticed something; this Darleen's thumbnail was with her family (Darleen is in between Dirk and Bella), while the other Darleen's was really, really close to the end, along with the "real" Skip Broke, in between Michael Bachelor and that maid, Lucy Hanby(?), meaning they were created later into the game... Something tells me Maxis is messing with our heads... But I think this Darleen and that Skip may be the real Darleen and Skip... Wonder who the other two are.

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What I think....

When the real Darleen and the real Skip, Maxis accidentally killed them. Bummed out by this, they created two new clones. Before they realised that they should leave it be, Brandi was having an unborn baby. Then, When it came to Darleen they just left it be too. Simple!

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I think that they first made one Darleen(the fake one) and wanted to use her, but accidently they kinda "lost" her or something. So they made a new one(which is the real one) and used her! Or maybe they are 2 different sims(I mean Darleen the fake one seems to not have any relations with them) I may be wrong, cause i don't use SimPE.