Because even doormats become doormats for the guy that loves them back. She has one sided love, blinded by everything he does wrong and yells, screams, shouts anybody who dares to talk to sid. She has no self respect. Even doormats have self respect for themselves. Using the word doormat is not it.
There were rumors of him and aarti dated outside of bb but I guess she thought he was in love with her but it was just a time pass for him. Even a doormat will not let any woman become close to her man.