Our 7 years relationship ended. Where do I go from here?

We were together for 7 years. It was clear from the beginning we weren't THAT compatible. He had higher libido and was way more affectionate than I was, also, he's 14 years older.

The last 2 years, we had our ups and downs but the last one was the worst. We were in an apparent "calm" but it was just us not wanting to take the first step and saying something because the relationship was so fragile we knew if was gonna end if we talked about it.

Thursday we talked, he told me everything he's been thinking and ... It was exactly the same Ive been thinking. It was emotional, it was hard but we both said it was the best thing to do. That night I texted him I love you, he said it back. The next morning I woke up to a text saying he wished he hated me with all his heart and not to know anything about me from now on. Then, blocked. On everything.

I was panicking, hyperventilating. We had a "clean breakup" and now he said he hated me?

It feels surreal to think, or have to accept now, it's all over and from one day to the other, I won't see him ever again, because he's changing gyms too, that is where we saw each other every day. I've cried, sometimes I feel hopeful for the future, sometimes I wanna do things, today I haven't eaten ... I feel so lonely. I lost my person. What am I supposed to do know? It's been 3 days and I feel so empty and on autopilot. He says "you hurt me and that's why I don't want to see you ever again. I wanted to spend the rest of my life with you and I don't want to see you with somebody else that's why I wanna erase you from my life" but that feels like, as if all the beautiful things didn't count and now he thinks I'm the worst person.

Where do I go from here?