My boyfriend didn't wanna marry me, I did something awful. How can I fix this?

So I met him back when we were 10 years old. He moved next door, but didn't become friends until we were 14. From then on, we were best friends.

We started dating when we were 21. We're 28 now, live together, both have a career and we're pretty well off. I mentioned marriage about two years ago. And he was all for it. We talked and talked about it endlessly and he said he wanted to. But I eventually got tired of waiting and he's now saying he doesn't know. If you're with someone for 7 years, how do you not know?
(Btw. I never have him an ultimatum)
it turned into an argument and besides sleeping in the same bed, I've been basically avoiding him. I wake up earlier, take off to work, and later in the evening made plans with friends and would go to sleep after he's asleep. He called me out on it yesterday and told me he was tired of it and didn't want to play games. And then started pointing out all the bad stuff he doesn't like about me.

So, yesterday, while he was at work, and it was my day off, I packed up all my stuff and left. I'm staying at a friend's. My plan was to go apartment shopping but he has filled my voicemail with messages of him crying. Begging me to come back. As well as texts.

But if i go back, I'm right back where I started; wanting to get married (and having kids down the line) and not getting it from him. But it's also painful letting him go. I need time to think but will he be okay with me needing time? I don't know what to do. I know what I did was immature. I was just extremely hurt. And now I need advice? Anyone have any experience with this? At this point, did I make the right choice for me or not?
My boyfriend didn't wanna marry me, I did something awful. How can I fix this?
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