Grateful to Vish

She ran away for audition in the beginning so Rad could marry Dev

She repeated the act of running away couple more times so Dev could bring Rad home in ghunghat and express his love towards Rad

She did not know how to cook , do puja and take care of ppl in Purohit house ..and was rude so that justified her being an unsuitable chhoti bahu...

Finally she ran away for good and rejected Dev..so Dev and Radhika's relationship could be legal in society eyes..