I have a plan. I'm going to hack my ex's facebook.
Why would you invade his privacy?
I'm curious about his social network.
You really need to not spy on people. It's wrong and that's their Facebook account.
I'm not just going to simply spy on him, I'll hack him.
If by hacking you mean writing fake posts to embarrass him, that's even worse. You should move on and channel your energy into more positive channels.