Bernadette Rostenkowski-Wolowitz

Bernadette Maryann Rostenkowski (Melissa Rauch) is a waitress at the Cheesecake Factory paying her way through graduate school microbiology studies. She has been dating Howard off and on since The Creepy Candy Coating Corollary and as of The Herb Garden Germination, they are engaged.

Howard
Main article: Howard and Bernadette 



Bernadette has been dating Howard since The Creepy Candy Coating Corollary. Bernadette was introduced to Howard by Penny because of a pact Leonard made with Howard. After that, Bernadette dated Howard for a few more episodes until Howard announce that they have broken up "a few weeks ago" in The Plimpton Stimulation. In The Hot Troll Deviation, Howard revealed the reason they broke up and after he apologized they started dating again. In The Herb Garden Germination, Howard proposed to Bernadette and she accepted.



Penny
Bernadette knew Penny before the rest of the gang as she worked as a waitress at the Cheesecake Factory with Penny. By the fourth season they have became good friends and ocassionaly go on a girls night out. Bernadette doesn't like Priya because she sides with Penny after Priya announced her relationship with Leonard.

Trivia

 * Bernadette was raised Catholic.
 * Bernadette says her mother wouldn't let her learn how to ride a bike since she worried she could "hit a bump & lose her virginity."
 * Her mother ran an illegal daycare center in her basement when she was at an unknown age.
 * Bernadette studies Microbiology.
 * Despite being an adult and living on her own, Bernadette's mother still picks out her clothes for her.
 * Bernadette says she lost her virginity in a Toyota Camry.
 * Bernadette says the most exciting thing she gets to work with in Microbiology is Yeast.
 * Bernadette met Howard while waitressing at the Cheesecake Factory with Penny.
 * In The Hot Troll Deviation, Howard is revealed to have been having cyber-nasty under the Bridge of Souls with a troll on World of Warcraft and Bernadette caught him red-handed, so they broke up. However, they decided to go out again.
 * Her last name is revealed to be Rostenkowski in The Love Car Displacement.
 * Bernadette also knows a lot about Physics (mostly in experimental physics.)
 * Bernadette says that is she hadn't taken up Microbiology, she would have either become a Physicist or an Ice Dancer.
 * Her middle name is revealed to be Maryann in The Herb Garden Germination.
 * Bernadette isn't good at lying as she went to a catholic school when corporal punishment was still allowed and the she says that they wooped lying out of her.
 * When she gets very angry, her voice changes to one similar to Howard's mother, to which Howard said "she sounds sexy when she's angry".
 * In The Roommate Transmogrification, she announced that her dissertation has been accepted and she will get her PhD soon. She also announced that she has been headhunted by a big pharmaceutical company.