Mark 11:25

And when ye stand praying, forgive, if you have ought against any; that you Father also which is in heaven may forgive you your trespasses.  

The devil uses offenses and unforgiveness as a weapon in his arsenal.  He knows if he can get us hurt and offended, he can slow or stop our prayers and blessings.  We have the power of love in our arsenal that has been given to us by God through Jesus.  The offense should become like water off a ducks’ back, and we just shake it off and let love rule the day.