I just don't get her character, who she is, where she's suddenly come from, what's her role, the weird jealousy thing for Akash. I know she's supposed to help bring Arnav/Khushi closer later on but even then won't it seem contrived since there doesn't even seem to be any sort of relationship/bonding between Bubli and Arnav/Khushi? I think they probably just thought she'll be useful for good filler scenes with Mami and Payal
If they wanted a storyline where a kid brings them closer together, shows there softer side etc. Nikhil was perfect! There was a valid reason for him being in the RM (the tuition thing) plus the scene with him and Arnav was so cute, he's such an endearing character. And when he gave that cheeky reply to Khushi saying he had already read the letter on the way, so he's already had more communication with them than Bubli!
I doubt, of course, that Nikhil is coming back, so i think the least the producers could do is rethink Bubli's character/storyline.
Or maybe it's just me, let me know what you think x