The man who I started to date with 2 months ago has been having serious relationship anxiety for years. He has been working on it.

He said he has feelings for me and into me and thinks every time we spent together was amazing. We had fun activities, unique and deep connection, wonderful chemistry, honest and vulnerable conversations. He said everything was great with me and that these were that he always wished for from a woman. All of his actions confirmed the above ones and that he liked me.

Yet he got distant and decided it was better if we end it, because he might break my heart if we continue. He confessed that the questions “Is she the one?” “Is this forever?” “Is this love?” keep stucking in his head, he can’t focus, and these questions makes him anxious.

We decided a few days ago not to date. I’m learning about the relationship anxiety (ROCD) to understand it better.
I’m very confused. Why would someone choose to end things instead of just enjoying what’s great?
His work is very stressful and overwhelms him, does that add to that issue?

I gave him a card, that I will be there for him if he needs me.
We stopped talking. I miss him so much and that we had and started to build. I’m hoping that he would come back. Is that a silly thing to do? I know sometimes people need space.
How long should I wait for him?
Should I have stayed with him and support?
Should I have risk it that he might not break my heart?
Shouldn’t we do radio silence?
Has anyone been with someone with relationship anxiety?
Thank you!