Can someone please tell me Whyyyyyyyyyy!!!!!!!!!😩😩

I was dating a guy for 9 months I decided to walk away. He crossed the line so many times. Called me out my name, never listen and if he get mad enough he would always try to kick me out of his house and car and treated me like a absolute child. So I got tired and walked away I blocked him. But he is still able to leave messages on voicemail. So he has been calling from another phone hanging up and being childish. This last time yesterday he calls and leaves a voicemail of him talking to another woman we have been broken up for like 3 weeks. He is so childish my feelings were hurt for a quick second then I thought about who this man really is. And I received instant peace. Because I didn’t deserve how he treated me!! I’m human and my feelings do hurt but I’ll be okay 💜💜💜