If someone isn't interested in you, nor doesn't want to be bothered, then why would they stick around?

So maybe, someone can explain this type of behavior to me and make it make sense. So I was dealing with this dude, about a month ago. And at the beginning everything went well between him and I. Then as time went on, I started to know there was a change. He act one way, with me in person, but when it came down to texting and talk to you on the phone it's like he was completely different, but in a very negative way. Maybe, I wasn't as patient as I should have been. But, I'm not going to tolerate someone's mouth and them being disrespectful to me. So fast forwarding him & I we started having some problems that he created when it wasn't necessary. So since he's the type to be immature. When there was things that I said to him that he didn't like to hear or he didn't agree on he will block me. Then after a week or so he won't unblock me. So it was just too much mess going on between him and I both so I involved my friend. Now this is where it's going to get pretty tricky. So he told some lies to me and some truth to my friend or maybe he told some lies to her and somewhat was truthful to me. But he tried to play as both, lol. But he mentioned to her and said how it never was his intention on trying to get to know me, he said that he was never really interested in me, and also said, how he really WASN'T looking for anything WITH me. Continue to keep reading update to question...
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He also mentioned and said how he didn't want to be bothered, and how he wanted me to leave him alone. Now get this, I never assume, or came off acting as if I was interested in him. After all he was just a basic doordasher. Yes we were speaking about the app and I guess he was trying to help me fix my address. But what does that have anything to do with him giving me his personal phone number, most smart people would have said to contact doordash customer service. But anyways.
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Moving on. He also felt, as was taking up most of his time and how he didn't make time for oothers. He was say we can have small talk, but that would lead to hours of conversations, and also. Yes, he did say to me to leave him alone at times and he would block me. But if you didn't want to be bothered then why resurface an area, that you once already visit. Can someone help me make sense of this. Because I never kept him hostage and acts as if he couldn't go it was his free will. Help
If someone isn't interested in you, nor doesn't want to be bothered, then why would they stick around?
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