Now coming to Her opposing him being DO than as i said earlier it's not that she doesn't trust him and his abilities it's just that she knows he is too honest seedha and simple he is very straight forward and really can't pretend anything sid is the man jo jaisa dil main hai waise hi moon main bhi hai he can't act and try to be sweet while doing the worst things i hope m making sense here so she knows that he can't sugar coat and make them do things all she's worried about is His izzat and she knows how he'll be tortured and tricked all she cares about is him getting hurt and people making her mazak if u see even shanky said i see a wife more than a dr. she is not jealous of his success infact somewhere inside she's proud of him but she's afraid of him getting everyone's target we did see the glimpse of how they will treat him in locker room with all the bouncing and hitting . this is what riddhima can't take it. Plus as shanky said he's not a bigaada bacha anymore that side of sid is unseen to rids she never saw him as a spoilt brat so she was a bit shocked like it was unbelievable that he can be a brat too. plus the way she left i thought was out of respect as a wife she knows she has to start following him so that everyone else does and jahan tak i can see she'll do more stuff as a wifey than as a dr.
oh and sure her initial reaction was shock caz she worked her ass off to get there and how easily it was given to sid but than it was totally different thing
p.s i thought armaan was a bit too much when he was making her fun when the coffee cup broke what did she even say?