Well to answer your question that if you are betrayed by your love I believe anger may colour your judgement and you may think that you hate that person.But i truely believe that hate is part of your love.There is just a fine line of difference between love and hate and in anger this line gets blurred.In kth though sujal truely got angry with kashish but i don't think he ever really hated her.We have seen many instances where sujal suffered equally whenever he used to hurt kashish.Frankly speaking i would love to marry a guy lke sujal.His hatred is also full of love.