I was happy for the return of rahul but it's true that he actually ran away from the tough situation of house because he was missing his family. Everyone miss their families but knowone wanted to leave the show. And see it's not that nobody tried to explain rahul the clip was not shown in the episode but bigg boss will surely try to explain him to not leave the house. When rubina wanted to leave the house after some discussion only she changed her decision and who said she was not scolded for that my goodness that week salman insulted her in a soft tone but so badly and for this he taunted her the very next week (she deserved those bashings). So now the same treatment is given to rahul. So I don't think there's any partiality here problem is rahul is arguing like anything and that's why salman is scolding him. Remember when rubina used to argue like anything salman used to scold her like anything so salman never favours rubina or rahul