Due to FA's rules, I cannot name this person directly. So I will phrase it differently:
Someone who I considered a relatively distant friend, if that, recently broke the camels back with their creepy behaviour.
Now he is going around and contacting my friends and more, in an attempt to get with me. (even though I have no interest in him)
I fear that the next step might be him spreading lies about me, in an attempt to get back at me for not dealing with his shit.

Update: Has started asking them VERY private questions concering my identity.

Couldnt take "no" for an answer, now goes around spreading shit lmao. Stay safe people.
If someone tries to insert themself into your life, and you are already getting strange vibes from them, be careful. I let him in to be nice, only to find out he was coming for my booty. Some people just cant take rejection or the idea that they could be in the wrong .