Why do I have to be granted permission?

I don't understand? We got in a argument and eneded up saying its over out of anger...not really thinking it was over but the VERY next morning he took off to see another girl...he stayed with her a week.I was scared he was guna hurt me so I distanced myself and was being extremely mean to him to try and protect myself and that was the reasoning for him trying to move on....my mom messaged his dad to try and get my $700 back that I loaned him for rent while he moved up here closer to me (then moved back home again after a few months ) (3 hours away) he went on a vacation with his dad for a week and apparently he hates me now and doesn't want us talking.I frogot they were driving home this morning and called as I was just waking up and this is what I get...

He is a grown adult...

Edit we have been together for 4 years.Since I was 15 and he was 16.He was my first kiss first everything so I'm pretty attached to him...