remember once arushi insult krishna infront of pratgya that he do not do work ghar main parey hi rahtey hain and and he just knows what happening in women that he knows better pratgya was very angry it was the time when arushi takking her revenge from her sis and also shaktyas wife
and durring marriage with amman she also said hum ko app se behter pati mill raha tha aur app yeh dekh nahi saki on that time krishna was hurt Krishna but didnt say a word becoz of pratgya and also said that yr husband krishna depends on his father and amman ki apni pehchan hai aur and amman jejoo se darta nahi hai that 1 durring when pratgya try to tell truth about aman to arushi and her family...that was past so leave it...
now its looks that may be krishna will help tanmey and arushi after all he is main hero of the serial