Best date ever ending with wanting to be friends?

Hi all, :)

So, after nearly a decade of dating, I believe I have my gut feeling about where it belongs. I went to meet a guy from an app, and it was like we had known each other for years, yes, just like that. And I'm picky with that. Three hours swished by, and I was so comfortable and had so much fun; we laughed and flirted. Also, he touched me very much, letting his hand rest on my arm or leg more times than I could count. Also, we shared so many personal beliefs about life and principles, and it all came so naturally. It was all there with laughter, some flirting, playful touch, deep conversations, excellent eye contact. He even said: "It's so easy to talk to you" out loud. I've had my fair share of great (and bad and awful and meh and everything in between) dates, so I was smiling already. I almost had to pinch myself at the feeling of meeting someone with whom I had clicked so much.

Walking towards the bus, he put his arm around my waist. I didn't reply bc I dislike too much physical touch on the first date. Also, he was the one to touch me during the date itself then I gradually replied. Anyhow, we finished with a hug, and I came home with the biggest sexual tension I have ever felt? The next day he texted me in the morning that he didn't feel a romantic vibe, so he instead wanted to be friends.

Feelings are feelings, and I don't wanna "fight" for someone to like me, simple as that, but I just can't understand what changed or maybe if he all along just was friendly. Any input?

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Should I tell him how I feel or is it a lost case?
Best date ever ending with wanting to be friends?
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