Don't talk like that, you're not lonely and you sure aren't an invisible member here. As far as I know you're nice person and it's always great to have chat with a person like you, but you must understand that many are busy and they don't have time to chat and also not everybody can response you immediately.
I have said to you before but I will say it again, whenever you need to chat with someone if I'm on this forum then feel free to droop by.