A) In the earlier episodes Shravan said there was something off about Aditya to Pushkar and Pushkar said something along the lines of how Shravan will admit that Aditya is a nice guy one day.
B) Aditya said he "owed" Shravan.
C) Aditya handed his amanat (Suman) to Shravan. Here is where we all roll our eyes because Suman is not Aditya's to give away, but let's go along with how the CVs have presented it.
D) Nirmala's upbringing would be questionable and she'd be no better than Ramnath if Aditya turned negative. Also, Shravan needs closure with his mother and worsening their relationship with Aditya "taking" Sumo from Shravan is not going to result in a resolution or Ramnath's exposure. Looking back at Shravan + Aditya's conversation from yesterday highlights the difference in upbringing between the two of them - they have vastly different things to say about the same people. To me that means that Aditya is going to act in ways that put Nirmala in a good light.
E) Aditya is such a sweetheart, yeah, he's angry because he feels like he has been lied to but at the end of the day I don't think he'd force himself onto Suman if he felt that she didn't like him back. I know he seems clingy/"chipku" but that's just his personality and he backed off when Suman hinted that he should back off but then she's the one who agreed to the wedding and it's not Aditya fault for wanting to be around her after that. He likes her, he doesn't know about her feelings but assumes she likes him back because he has no reason to suspect otherwise as she agreed to marry him.
F) If he were to turn negative, he wouldn't have bothered asking Shravan and Sumo about their feelings, he just wants to know the truth. He's been tangled up in a mess he didn't ask for, if someone had indicated that ShraMan were a thing from the beginning he would have backed off.
I don't know why but I feel like something big is going to happen to Shravan (not suicide) and it's going to pull Suman towards him because I recall her telling Ramnath that she wouldn't be able to hold herself back if something happened to Shravan - she wasn't swayed by his evident pain because he was being an asshole but if she learns that he is emotionally hurt or something happens to him physically (like an accident) she'll leave everything else for him!