The bible teaches us to turn the other cheek and to forgive 70 x 7. One thing to consider is offenses will happen, however staying offended becomes a distraction, or blockage. If you are always offended your heart is not right and if your heart is not right God cannot use you to do His will. This is why it is important for Christians to have depth in their understand of who God is and who they are in Christ. If you know what God says concerning you, then you are least likely to be offended. When you know who God says you are, you have the confidence to not be concerned with what people think of you. Fruitful people are not easily offended because they have made peace with the imperfections. The people that tend to be offended are the same ones that lack purpose. They will "overdramatize" an offense to disrupt your focus.
Don't let this be you. If it is, repent to God and find your purpose (your love, the activity that puts a smile on your face.) and get that activity more involved in your life.