C'mon. How quickly people forget the previous seasons. Or want to selectively remember stuff. Bani - Gaurav and Lopa-Rohan, both were questioned or doubted. People thought in both cases, it is more than friendship. Especially Bani-Gaurav because the way Bani used to get upset also seemed like a GF getting upset with her BF. So, this always happens. In the end, only those 2 people know what the truth is.
Also, I'd like to mention how people realise it was only friendship when the two people don't let these taunts and doubts come in the way of their friendship and behave exactly how they want to. And if throughout the show, there is no romantic angle and afterwards they are still friends, then people believe that it really was just friendship. So, I think Romil and Somi shouldn't let it affect their friendship. They have done NOTHING that can be called romantic. Just because they are close, and care for each other, doesn't mean there is something else going on. Warna Sreepika ki tarah pehle hi Bhai-Behen ka tag laga lo, fir kuchh bhi karo. At least they are brave enough to call it JUST friendship.
IMO Romil's wife got jealous and well most people would be. But someone more mature, and someone who trusted her husband more wouldn't have and I would've appreciated that more.