Is he a psychopath?

this man from my neighborhood has been flirting with me for like 1 year, i always reject his advances. ok, one could say, the flirting aint even that bad but: he suggested to buy me groceries, i said no, he started to carry stuff in his bag just in case he meets me . then randomly mentioned so and so told me you were around XYZ at 8 pm (i believe hes trying to threaten me, that he will always know where i am)
when i lost a phone, he wants to know when exactly am i going to get a new one. like for what? i know where to find u if i wanted to
i believe hes doing this on purpose because he knows damn well i am not itnerested in him romantically
i was lil bit warmer with him as we are countrymen abroad, we are even from the same hometown. he is like 53.
why is he so stuck on me and am i right he is alarming

DrWatson · 70-79, M

Tell him point blank that he makes you uncomfortable, that he is acting in a way that creeps you out, and that you do not want to talk to him anymore.

And document everything he is doing, especially if he persists after you tell him this.

That document can be evidence in court if you need to get a restraining order against him.