1 Peter 3:8-9

Finally, all of you be of one mind, having compassion for one another; love as brothers, be tenderhearted, be courteous; not returning evil for evil or reviling for reviling, but on the contrary, blessings, knowing that you were called to this, that you may inherit a blessing.  

If the devil can divide good people through strife, he will. Every one of us will have a bad day, but what makes the difference is how we treat people as we go through it. We can be offended, but it really isn’t that much fun and wastes a lot of time thinking about angry thoughts when we could be happy. The best is as Peter said to have compassion and love on another not returning evil for evil so we can inherit the blessing.