The illness called Resentment.

Harbeh Shluchim L’Makom. If you are not getting what you think you deserve from a person , Hashem can find a different person to give it to you, and if Hashem doesn’t think that you should have it then it is better that you shouldn’t have it. Get rid of the illness called Resentment.

heard from a Shiur by Rebbetzin Heller