Remember those recent sob stories about Rachel Uchitel being a love junkie who just wanted someone in her life? Read this:

from www.tmz.com – Rachel Uchitel — star of “Celebrity Rehab” — has refused to fly out to an L.A. premiere party for the show — and TMZ has learned it was all because she REFUSED to fly coach.

Sources connected to mistress numero uno tell us Rachel tried to catch a flight from NYC to LA moments ago … but she couldn’t lock down a first class seat — a total deal-breaker.

Rachel then tried to book a last-minute flight to Vegas instead — but struck out there as well because her flight was canceled.

So instead of flying with the plebes — Uchitel took her $10 million ass back to her ritzy Manhattan apartment … where she will watch the premiere of her show all by her lonesome.

Tub of ice cream optional.