I feel that Jahnavi was someone who showered true love on the kids, as it is the family where Om calls his father Mr. Oberoi, Shivaaye throws his phone on his mothers call, curtly back answers both his parents, they never showed any disrespect to Jahnavi, while Om demanded an apology from Tej for his mother, Shivaaye called him Badi Maa. I really want some sweet scenes between Jahnavi and the kids
Coming to the childhood Om and Shivaaye, I think they had a very disturbed phase, Om's mother was all shattered to provide any motherly support, despite her loving motherly instinct, his father was busy in his business and secretary, Shivaaye's mother was a money monger who is seeing his son as a bearer cheque, his father I find the most annoying in the lot, while the others at least clearly accept that they are what they are, Shakti tries to disguise himself as a goody goody man, while he too is involved in the dark past of the Oberoi's, I find him a hypocrite.
As I have mentioned in a previous post, I think that Om and Shivaaye are practically of the same age (with Shivaaye being 8-9 months elder), they grew together with no one to shower love and protection and therefore became each other's support, as we can see, both these brothers can understand each other's pain and thoughts even without a word. And if this was not enough, since their childhood, their parents started preparing them for a race in which their competitor would be the person who is his only solace. This disturbed childhood made them mature at a very early age
Rudra on the other hand, I think did not have that disturbed life as a child, maybe by the time he was big enough to understand things, Shivaaye and Om were big enough to shower the elderly love onto him. He had a protected childhood and was never made a part of the race and hence he had the leisure to be carefree and sweet. But I am sure we will get more of this character as well.