Most Helpful Guy
Just do it, if you're over him you shouldn't care2
Most Helpful Girl
The first thing I would suggest is... Don't give a damn about what it'll make you look like. It's your life, it's entirely up to you to keep certain people in your lives or cut them off completely.
If you want to cut off the contact then do it and don't look back or think about it. If you don't care if he's on your fb or not as you have already cut him off, just ignore his entire existence. Don't give it much thought.
Do what makes you happy.
Life's too short to think about what people think of you. And what people think of you is none of your business.
Good luck ^_^1