Jealousy is an ugly color for Real Housewives of New York City's Ramona Singer.

RadarOnline.com has learned that the controversial reality-TV star hatched a plan to follow in the footsteps of former RHONYC star Bethenny Frankel in hopes of becoming as popular and successful as she is -- but it's not working out so well for her.

"Ramona has always been jealous of Bethenny and didn't even want her on the show at first," a source close the situation told RadarOnline.com  in an exclusive interview.