Post what you want to post, and if he gets hurt it's his own damn fault for stalking you. Look, you don't have to cater to this guy's feelings. It is not your job to manage his emotions. If he wanted a say in how you lived your life, maybe he shouldn't have broken up with you. But he did, and now the only person with input on what you do or post is you. If something hurts him, it's his own problem, not yours. A good friend wouldn't try to control you in that way.