What if this SLAP reveals RKs true feelings??
I mean she asked him why he is worrying about her well beingness...and slapped him... May be this will break RK's inner feelings and pain and in the rage he can spill out...
'Mujhe fark padta hai... damn it!...kyon ki main tumse pyaar kartaa hoon...'
Obviously Madhu will be shocked but she will not believe this...thats a different story.