I'm going out on a limb here and saying the cv's are showing us exactly what they want to show us ...
Which is ...
ALL the traits they have shown us of Aarav are the nurture traits, not the nature ones ... i.e. not inherited traits, but those that come from training or upbringing. Be it his dressing style and 'what the - the most obvious ones and the ones most definitely inculcated, not inherited ... or his interest in gardening, his disbelief in rituals, his dislike of girls (btw, all boys that age dislike girls, it's mandatory!) So Sheetal has obviously reared her son to be a carbon copy of Arnav.
I did note that none of the R ladies who had known Arnav since childhood, said even once that Aarav looked like Arnav at that age ... by that age, most kids show some resemblance to their parents ... it was only his attitude they remarked on.
Why has Sheetal reared her son to be like Arnav is the question that will be answered in this track. Steering clear of spoilers, my theories - well, there are actually only two possibilities here ... 😆
Aarav is indeed Arnav's son, maybe from a one night stand with Sheetal, or a drunken night he doesn't even remember ... hence Sheetal has reared him like his son. Arnav didn't appear like a man who had anything to hide when he told Khushi about his affair with Sheetal. So the question of Aarav being his son has obviously not entered his head.
Of course that could also be because Arnav's dimaag being the myth it is, he doesn't do simple Maths, even after knowing Sheetal is a single mother. 😆
However, if Aarav was indeed Arnav's son, why would Sheetal go to so much trouble to rear him with all Arnav's traits? The fact that he was Arnav's son would be enough, she wouldn't need to remind herself of the fact by giving him all of Arnav's habits also.
So the second possibility becomes stronger - Aarav is not Arnav's son ... and Sheetal has reared him to be like Arnav ... for one of two reasons ...
either she loved Arnav desperately, knew it was one-sided, she had a fling on the rebound after she broke up with Arnav, and Aarav is the result of that fling. Or she had a short marriage which broke because she couldn't forget Arnav, and Aarav is a result of that broken marriage.
Or she's doing this to try and get Arnav back, now that she knows he's not anti-marriage like he was in the past when she knew him.
Or the first already happened, and now the second will happen ...
For the doubt to rise in Arnav's mind, he has to have slept with Sheetal at least once.
Arnav's expressions during Rabba ve ... again, I will assume that we saw what we were meant to see ... BS is a good enough actor for me not to doubt that ...
Khushi was lost in the hug, relieved, happy ...
Arnav was lost too, but not with Khushi, somewhere else ... wondering? memories? doubts? the first thought about Sheetal being a single mom, Aarav's age ... did he have any memory of sleeping with her?