There appears to be no tension between Natalie Portman and the American Ballet Theater’s Isabella Boylston, the ballerina dumped by choreographer Benjamin Millepied when he met the “Black Swan” star, who’s now his fiancée. A heavily pregnant and glowing Portman accompanied Millepied to ABT’s performance of his new piece in the company’s repertory program Tuesday night.

DANCE REVIEW: ABT

But first she watched his former girlfriend dance as a lead in a work which included most of the company. Boylston also performed in the last piece. Missing was soloist Sarah Lane, who caused a controversy when she said she did most of the dancing for the “Black Swan” part that won Portman an Oscar. Lane said earlier this year, “I’ve been doing this for 22 years, and to say that someone trained for a year and a half and did what I did is degrading not only to me but to the entire ballet world.” While ABT reps didn’t get back to us, we’re told Lane was due to take to the stage last night.