Of course a man and woman can be just friends, but that's only if its all both parties want.

Please don't feel bad about lying regarding your son's paternity and your meds This man is a complete stranger and therefore isn't privy to such private truths.

You weren't stupid, so please stop beating yourself up! You wanted some company and took a chance...

If you're not interested in spending more time with him, then just text him and be as honest as possible. Tell him you're not looking to date right now and you really didn't mean to lead him on by having lunch with him, you were just looking to make some new friends. No need to keep him hanging on if he's clearly interested in more than friendship.

I'm not sure if I responded in a way that was helpful, but I'm here if you want to talk some more.