This.
I had a friend who was constantly using me to moan at. I decided to stop putting effort into her. So she'd text me "hi how are you?" And I'd reply "fine, thanks, how are you?" She'd say she was fine too. Then nothing! A few weeks would pass and she'd do it again. This went on for a year then I stopped replying, because it was clear there was nothing there any more.
She eventually called me to ask how I was and when I said fine, she sounded pissed off and said she'd sent me a few texts. Which she had, every few weeks "hi how are you?". I said I'd been busy and it slipped my mind, but that I didn't see much point in texting each other that every few weeks anyway. Eerie silence down the phone, so I asked if she wanted anything and she started moaning on about her latest woes, so I told her I didn't have time for a long chat, got her off the phone and blocked her number then did the same on Facebook.
A few months later I got a message from a sibling, who wasn't on my Facebook friends, didn't have the same last name as me and who my friend had never met. She'd somehow learned who they were, tracked them down and was wanting them to pass on a message asking how I was, demanding to know why she couldn't get in touch with me. Batshit!
I advised sibling to steer well clear and when they received another message asking how I was a few weeks later, they blocked her too.
Don't be the creepy demanding "friend" OP.