I have spent too much of my life caring what others thought about me and have missed out on some memorable times because of "what would other think". Don't let some other person's own inability to be tolerant change your perspective on yourself. If you look in you and see things that you would like to change, no day is better than today to start. If you look inside and say "hey I like this person" then recognize that and not worry about someone else.
We can respond to irritation with a smile instead of scowl, or by giving warm praise instead of icy indifference. By our being understanding instead of abrupt, others, in turn, may decide to hold on a little longer rather than to give way. Love, patience, and meekness can be just as contagious as rudeness and crudeness.