Why do we need to be good to others?

Because you are being bullied by others ? So, you are going to give up your good character and react with bad character to those who are bad to you ?

Yes, of course you must feel nervous,angry etc.. whenever you receive bad things from them. 

There are so many ways which are Staying away from them and Stop associating with them. But one thing you can't avoid is to be good to them. You should not spend time to revenge them. Just let them stay the way they are. You know ? Even,their family can't change their characters. Your running race is different from them. Fix your eyes on your goals, do not astray from it because of them. 

If you love yourself, do not harm yourself by thinking reactions from others repeatedly. Just keep maintaining your good character. 

 

The numbers of the dates, years and months from calendar are changing,these are not stopped because of the situations. It will go itself and will not wait for anyone. So, you also do not stay in the past, stay in present and change the same time with calendar.