Finding An in Complete FF

One more help in arshi ff... The story is something like arnav marry khushi but doesn't know any thing abt her...thn he goes to office for finalising a deal with other company nd gets to know tht khushi is head designer in tht company...also sheetal is there who doesn't like khushi so she purposly in front of arnav talks on phone with someone nd says tht khusi is characterless nd she is after atnav money nd all tht...nd arnav also gets doubt on khushi nd thn he sees her with a boy in cofee shop... He insult her a lot...Thn there is karan khushi boss nd her frnd like brother... While finalising deal khushi gets late nd karan doesn't sign deal nd arnav comes to know tha she is the partner with karan in tht company... Thn he say sorry to khushi for insulting her...nd aman is arnav frnd nd he know khushi... Something like tht...which story is this!!!plzzz