i don't like the idea of Radha going and getting sleep in SP's room. There are people to take care of him and he anyways cheated on her too so she should maintain her dignity and keep herself away from him.
Radha -SP relation is not being digestable for me just after Gayatri is gone and even these two had big differences.
After facing so much humiliation, due to women's dignity Radha should keep herself away and detached from SP . She should calmly stay there with dignity and show her motherly love to Yash. And to other's only if they accept as all knows her as second women and she is having respect just due to Yash's mother label.
Very practical that other's will disagree to give her mother's place, however good she be.
They could show this thing a little later after forming much strong base for this plot. At present it feels little too soon to me.
-Anu