Bold 1: He's genuinely an asshole when it comes to his mother, like he doesn't give a damn who he has to tear down to get the job done. The whole bullying thing is so true, but I don't think it's romanticized at all. She calls him out on it multiple times, and they all consistently maintain that it's wrong- but he doesn't care.
Bold2: Idk bro, I feel like the mother-son angle would've done well even today on tv. Like it's so gross and pseudo-incest-ish, and it is shown to be legitimately creepy- not "aw how sweet, he loves his mom". She's a manipulative person and it's never even implied otherwise. We have a lot of serials where the mother is straight up evil, or just is particular about having a bahu of her choice. Ishwari on the other hand legitimately thinks of Dev as her husband, not her son. It's an interesting angle to show on tv today in my opinion.
Dev is very territorial and knows what’s his to protect. He didn’t get anything in childhood & in his head the reason for that was because they didn’t have money or power. Now he has both and has shown to buy everything with the same. He does that with everyone and later he does that for Sona too, who teaches him that not everything can be bought.
Dev has never been called out by anyone for throwing money around or being rude and unacceptable, but Sona does. Multiple times. I liked how none of this was romanticized. And even though you don’t find it right, one understands why he does it.