^ SO MUCH THIS.
Armaan didn't have anyone to turn to in s2 and that was just sad. They should have kept Rahul/Atul/Nikki if only so Armaan had some friends! Yes, he had Sid, but Sid didn't take care of Armaan. Armaan was the one looking after Sid and Sid never even understood how difficult it must have been for Armaan to help him to get Riddhima to accept their marriage.
Matlab, Sid always knew that Armaan & Riddhima had been deeply in love, yet he never even thought of the consequences of what he was asking Armaan to do. He just thought Armaan should get over it like it was a two month fling and not a two year relationship in which he was engaged!
I wish he'd had Padma too. Shashank was there, but he didn't understand Armaan and all he did was tell Armaan to buck up because there wasn't anything he could do now that Riddhima was married. And then he asked Armaan to bring Sid & Riddhima close! Like, have you completely lost the plot, old man?