Don’t hate people as a person, but hate as a behavior!
If you hate someone about his/her behaviors, let them know, they might be unaware of what they are doing.
Do not hide deep of yourself, the fire which it is in your heart will destroy you, as a consequence, it will lead to other ailments, which you do not like it to happen to you.
If you let them know, in case they did a mistake against you, they might correct it, and apologize about it for you, the burn will go down, as the relationship will cotinue up in peace with kind of love and cooperation!
However, if they did not fix it, forgive them, and leave them away, but don’t lose them by destroying the relationship, you might need them in the future!
Let them act the way they like, they might find out that they did a mistake later, therefore they will come and apologize for you!