https://screenrant.com/big-bang-theory-leonard-most-polarizing-love-interest/

Producer Steve Molaro opens up about introducing Leonard's most polarizing love interest on The Big Bang Theory — Raj's sister, Priya Koothrappali.

https://screenrant.com/big-bang-theory-leonard-most-polarizing-love-interest/

Producer Steve Molaro opens up about introducing Leonard's most polarizing love interest on The Big Bang Theory — Raj's sister, Priya Koothrappali.

I didn't mind Priya, I always wondered why they didn't bring her back in later seasons to stir the pot a bit. Sara Rue played Dr. Stephanie Barnett a love interest of Leonard in season 2, that was my least favorite love interest and probably my least favorite character during the run of the series.