A Runner.

A runner.
Those who run not only physically but emotionally as well.
One that runs from situations. Runs from problems. One seen to be cowardly and not ever the bravest of heart. Not ever one who is capable of handling any situation. But just as one who will run and run and run, even if it's takes years to run from.

Sometimes, you just need to escape and get away from some things until you have the solution.