Why could my ex be lying about me?

So I ended all communication with my ex 2 days ago because I found out he had stopped talking to me after talking to each other almost daily for 2 years and ghosted me because he met someone he's been getting to know for a week. I told him he should have been upfront to me instead of leaving without saying a word because I was always honest with him, I told him that after we broke up I was talking to my ex.

I also told him everything that had made me resent him that I never truly forgave from how he treated me in our relationship, I had to tell thim everything I had bottled up because I needed to finally stand up for myself and get closer. Even though I wasn't perfect as I didn't handle his treatment maturely, I told him that he was the biggest reason the relationship failed and that I had tried my best to be as good of a person to him as I could. I never had anything from him never asked him for anything except time and respect which he couldn't give to me. After that I told him that I wouldn't keep any good memories from him and only remember how he used me and f*cked me over and that I was deleting all his pictures and contact info and he should do the same.

But anyway, yesterday I found out he had been lying about some things. He said that I kept asking him on the phone "who's that bitch" and I never asked him who she is nor do I care about her and I NEVER called her a bitch. That he came to see me and talked face to face with me, he never did that either. And that he didn't say that he never cared about my friendship or losing it and he did because I asked him. Now I feel perplexed as to why he would say all those lies.

I won't ask him either way, I don't want to talk to him anymore. That's why I'm asking for an opinion here.

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7 mo
Closure* not closer
Why could my ex be lying about me?
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