Dada Bhagwan said this quote
“ You will especially not find anyone who speaks bitterly to you. All the 'diseases' [worldly suffering] remains due to the sweetness. Bitterness will remove the disease, sweetness will increase it. Your life should be such that you will not have to listen to bitter words. If however, you have to listen to bitter words, then you should listen to it. It is always beneficial. ”