Did Zarin diss bite Cohen?

A note to Andy Cohen: Maybe don’t mock people on national TV if you may later rely on them to save your shaky show.

Last year, Bravo exec Cohen made a crack on his chat show “Watch What Happens Live,” suggesting that original “Real Housewives of New York City” star Jill Zarin is desperate to get back on the Bravo air, quipping that she had bought homes in every city where the show is taped in hopes of increasing her chances of be invited back.

But we’re told that in a bitter (or sweet, depending on your point of view) irony, it was actually Zarin’s take-it-or-leave-it attitude to Cohen’s so-called “Legacy” edition of the show that sank it entirely — and she hadn’t forgotten about the dig by the time she got to the negotiating table either.

As Page Six reported, the network pursued current stars Luann de Lesseps and Sonja Morgan for the new “Legacy” edition of the show, plus veterans Zarin, Kelly Bensimon, Dorinda Medley and Tinsley Mortimer.

But, as it turned out, far from gratefully leaping at the first offer to join “Legacy,” Zarin played hardball during the negotiations. And we’re told that after Zarin walked away, execs “lost interest” and called off the negotiations entirely.

But a source close to Zarin told us, “It wasn’t about the money. Jill just wanted all the women to be paid the same . . . She would have done it for $1, as long as everyone was getting paid the same.”

The problem wasn’t so much that the show couldn’t go on without Zarin. Something of an Achilles’ heel for “Legacy” was that there isn’t a huge list of “fan-favorite” New York “Housewives.” Most “Real Housewives” shows have seven to 10 regular cast members, so once Mortimer and former star Bethenny Frankel were counted out of “Legacy,” the network really needed everyone else — including Zarin — on board to make up the numbers.

Zarin and reps for Bravo declined to comment.