Search Results: calling an ex boyfriend

I haven't contacted my ex boyfriend for over a month now
I blocked his number and social media

Today he sent me an email saying he needs to talk to me
And i replied "ok i will call u after work around 6pm"

But i never called him

Then 1 hr later he created whatsapp and started messaging me
"U said 6pm.. wtf?"
And started calling multiple times
And messaging me a lot

Me and ex boyfriend got into argument 2 weeks ago and broke up
No contact for 2 weeks

Then he has been giving me missed calls yesterday and today
I was still annoyed at him so I didn't pick up any of them calls

He called me again an hour ago
So decided to call him back
But he didn't pick up

I called him back twice
But he never picked up or called back

Why does he keep calling but doesn't pick up when I call back?
Whats his deal?

Me and my ex boyfriend been together for nearly 4 years
Long story short..
This past 1 year had been messy since he got into an addiction

Everytime he does the addiction, we get into an argument and break up
We have been breaking up and making up multiple times
It got so toxic but its very hard to let go

He's mainly the one calling/messaging me first to apologize or to get back together

Two months ago, we got into an argument and involved the police for the first time
Then we broke up after that
Few weeks later, he called me to get back together again...

Then few days ago, we got into an argument again and broke up again
But haven't spoken to him since

Do you think its really over or he might call again?

Me and my now ex boyfriend been together for nearly 4 years
But this past 1 year had been messy since he got into an addiction

Everytime he does the addiction, we get into an argument and break up
We have been breaking up and making up multiple times
Got toxic
But hard to let go

he's mainly the one calling/messaging me first to apologize or to get back together

2 months ago, we got into an argument and involved the police for the first time
Then we broke up
Few weeks later, he called me to get back together again

Then few days ago, we got into an argument again and broke up again
haven't spoken to him since


Do you think its over or he might call again?

Had an argument with my ex boyfriend a week ago
Which led to our breakup
I blocked him on social media
And reported him to police

A week gone by..
And I have been receiving private number calling me twice
I haven't had them since November last year

The timeframes of the private calls:
12pm - thats the time he usually have a lunch break at work
3 30pm - the time he usually gets home

Is this not a coincidence?