Angry and need to vent about ex

So my ex and I just broke up a week ago. It was pretty mutual but it ended weird and I never knew his reasons for it ending. It ended because he said he wasn't sure about us anymore and started talking to his ex without telling me. Well we were finally able to talk in person today about it. Overall, I'm really happy we talked because I finally got the closure I needed. But of course that doesn't mean I liked what I heard.

He told me his reasons were that he didn't feel like we were compatible. Which is a completely legit reason and is fine. But then he began to say all this stuff he found wrong with me. He didn't say it in a rude or mean way, but it stuck with me. He said he couldn't handle my anxiety and didn't want to have to deal with a girlfriend that has it. That hit me so hard because anxiety is my burden. I wish I didn't have it, but I don't have control. That comment made me feel like I'll never find anyone patient enough to understand what I deal with. He also said he didn't like that we never went out, just hung out at our houses. That's literally such an easy fix and I told him he should've communicated that with me. He talked about how our personalities and energies are too different and he's not what I'm looking for. He basically said I was boring (he's a really upbeat energetic person and I tend to be quiet sometimes). We dated 3 months, but wouldn't you figure that out in the first month? We saw each other every day.

I dunno I'm just angry now thinking about it. I'm disappointed I dated him and actually missed him when all he had to say was negative things about me. I'm all in my head now and just don't care about anything anymore.