Probably Naira will trust Karthik.. that he was to tell her but could not and he definitely did not mean to hide it from her.. she must have learnt the lessons from the past.. about trusting Karthik. .
Coming to consequences Singhanias would not want to proceed with the marriage but Naira will choose love making her loose her maternal family love for a brief period..
Karthik would in no way be okay tO live under the same roof with other goenkas and they ll move to the cute flat.. but definitely not a happy start to their lives...
Karthik would be going through hell from the moment he knows the truth and would be tearing himself apart from the inside