Please help me understand the guy or the issue?

He liked me and followed me around. Always trinv to initiate talk or standing next to me I avoided but once tried to congratulate and he acted like he doesn’t care. The next day he proposed in front of the whole school and I left without saying a word. He again pursued me by coming to my class in every possible opportunity. But towards the end of the schooling, teachers found out, embarrassed him and he started ignoring. His pattern is observe from far without a word.

Fast forward we met. He acts like he don’t know me. However I smell something odd.

1. He cancels on dates last minute, makes me go to the venue but observes me from far.

2. Records my calls and repeatedly listens to it

3. Denied knowing me even when we meet irl or eye contact but then follows me from behind

4. Doesn’t like any guys around me or shops them away

5. Territorial like a dog

6. Jerk, cruel and inconsiderate when I talk

7. Randomly follows my socials and remain silent or follow and unfollow

8. Turns onn read receipts to know if I have read and ignored and then turn it off

9. Ask me to leave him and when I’m with my dates, he tried to break that by bitching about me to them so they leave me.
10. Constant lies and manipulation

11. I once asked him to call my new number.10 minutes later he didn’t call do I deleted and on the 11th minute I get his calls

12. He needs me to be agreeable even though he doesn’t want (eg: he wants me to agree on a pet and would force me but will not get one)

Please help me understand the guy or the issue?
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