She had a very brief run on the show but she was the last of Raj’s major girlfriends before he had that strange arranged Indian fiancee. She was a minor but likable character.
She was probably one of the nerdiest girls on the show. While it makes sense for Amy Farrah Fowler and Bernadette to have nerdy partners, she is the only one I can think of off the top of my head, that willingly walked into a comic book store.
Raj falls for her quite quickly, despite being in a relationship with Emily. And he starts dating both of them in this weird casual dating/polyamory thing. Sure enough instead of having two girls, he ends up having zero.
She shows up once again with all of Raj’s exes to give him feedback on why they dumped him. And she reported that she was happily in a relationship with a new boyfriend. Which is good for her, because Raj was way too toxic by that point.