Leaving doesn't clean up your mess. It just leaves your mess for someone else to clean up.
Walking out on your problems merely puts you in a different location. It's like moving to a new house to get away from all of your trash. Even though you move, the house is still filled with bags of trash. Whether you are there or not. You might not have to deal with it but somebody will have to come behind you and clean it up. So you might as well handle it. Just take out the damn trash.
You will save yourself the trouble of packing and hauling your stuff up and down stairs and finding a new place and making new friends and all that stuff. It's not easy to get motivated to do the dirty work. But in the long run, it is really an easier job.