I have seen similar before.  A fat tries to copy a thin attractive girl and becomes their "mini me" (the exact opposite but you know what I mean) and can't figure out why the guys always hit on the girl they are copying and not them. They can't figure out why no-one notices they are wearing the same clothes because they haven't figured out that to most men, fat freaks are invisible and might as well be part of the background like a table or a coffee mug. ...and this is the point that they usually start hating men and become feminists or  decide that they are trans.  You see, that way they can say either that they don't like men and don't want one anyway or that they are single because people are trans-phobic... anything but to admit the truth to themselves that they are repulsive and no-one wants them.