Kindly refer to the following link(s):
My friend offended me deeply..What should I do? | By Assim Al Hakeem
How to deal with ill mannered people?
How to deal with rude and arrogant relatives (Kith and Kin)
Not speaking with another Muslim for more than 3 days & does this invalidate fasting?
My friend & neighbour insulted me & my family Can I boycott him for more than 3 days
How to keep your cool with those who insult you