Yet a little while and the wicked man will be no more; And you will look carefully for his place and he will not be there. (Psalm 37:10 NASB)
The 37th Psalm starts off by telling us not to worry about evil people. We spend so much time worrying about what devices and schemes wicked people are plotting against us, that we miss out on enjoying the abundant life God has given us. You have absolutely no control over the actions of another person. It's time that you turned that enemy over to God.
We all have that one person that we let get under our skin. Everything s/he does is a personal assault to us. Sometimes it's just our imagination, and sometimes we are really being attacked. Guess what? It doesn't matter. We have to stand still and see the salvation of the Lord. If we can focus on our Savior, our enemies will matter less and less, until one day, we will look around and wonder where they went.
Jesus Christ must be the center of our universe in order for our priorities to align themselves accordingly. Everything we do, everything we say, everything we are should have Kingdom motives. Wickedness can't live in the Kingdom; therefore wickedness can't remain around you if you are focused on the Kingdom of God. It will disappear if you don't feed it. Hang in there for yet a little while.