Now because you think dil se and your dil is so saaf you didn't really take revenge and actually tried to mend your relations with everyone (except Sonali). At least now the HMs can't really target you and keep calling you negative all the time because you proved that you're not negative by not only NOT taking any sort of revenge on them but also by sharing your luxurious food with them. Also, it takes a special kind of sportsman spirit to be able to laugh with people who've targeted you all along. You've truly proved with this task ki tumhare dil mein kisi ke liye kuch nahi hai. Kudos to that!!