OH, Hellishlygood,
I don't think 50guy meant that literally (or maybe he did!), but if you give in to this guy and encourage him, continue responding even in kindness, he is going to continue to profess his feelings for you.
You have stated you have no feelings for him, that his neediness makes you feel pressured and uncomfortable! If he doesn't still know your real name, or hopefully, your home email, then you should cease contact with him at the forum he visits. If he is emailing you directly now, then I suggest an honest statement to him that you choose not to communicate further. Then if he continues contacting you, you should block him. Better this, than ending up with him on your doorstep or stalking you either on the 'net or in person.
Patty