I was going to bash the episode but towards the end i saw some positive signs so was going to leave it at that. But you've expressed some of my frustrations on behalf of me.
The bhalla family was stupid enough not to see how stupid that girl, who fed the cough syrup, was. But, Raman was a bigger idiot. Itna intelligent admi ko dekhi nahin dehta hai how dumb that girl is. I'm pretty sure he has enough experience to judge a person. Raman must of noticed kahi na kahi that the lousy girl was more interested in her phone than Ruhi.
What cooled me down in today's episode was Raman asking the police not to misbehave with Ishita's parents. And, the other time was when Ruhi called for Ishita and Raman hinted in his expression that there is more to the story than what they saw. That was a big relief. Tomorrow we'll get to see if i was right or not. Let's see.
Ps. i agree with you - i know Ishita had little time but at the very least she could have mentioned that she took Ruhi to the hospital because her health had deteriorated. That could have been said in one sentence and wouldn't have wasted much of her time.