e.quaintance
Someone you pretend to like just because they send you messages and you don’t want to be alone.
'I’m your best friend online!', said by a guy who hasn’t replied to your last 10 emails.
You join a chat group and the first message is: 'Hey, I’m your new friend. Let’s be besties.', he’s probably your cousin’s friend.
You get an email: 'I’m your new buddy. We’re gonna rule the internet.', he’s probably your neighbor’s kid.