Need advice about relationships with presumably bipolar

Hey! I’m not bipolar, but I’m struggling with hyperfixation on a person who presumably has it. Here’s the story, I need to hear an opinion from somebody else because my thoughts are killing me to the point I have difficulties at work and headache. And overall I feel pain in the whole body due to this rejection or whatever it is.

So I met a guy on a dating app. We chatted for several days and I enjoyed every second of it. He is fun, quick witted, unusual, weird yes, but I like it. I like the looks too. All those days I was swimming in a dopamine pool. Felt so good.

Then we met. I’m pretty shy with new people, but he was understanding, supportive and sweet and fun. So the first date was a bit awkward, but felt great in the end. He mentioned the second date during the first one. Then asked in a day or two when we meet again. So it should have happened in 4-5 days after the first date. That was the plan.

Then he cancelled it due to work. The next plan was cancelled due to “low energy”. Before that he mentioned adhd and bipolar in chat but people these days tend to misuse it and you never know if it’s a joke, excuse or a real condition.

So he said that he is in his withdrawal mood, he’s not for people these days and that the down times are coming. I asked what do they look like. The answer was that he disappears from everywhere for about a week and then comes back to people’s lives pretending nothing happened. So I said that I understand and as our connection is important to me, let’s postpone the second date. He agreed saying the he doesn’t want to be *** with me and it’s better for him to postpone. Then I went silent for a day, but figured it’s *** not to maintain the contact at all. So I sent a meme. He replied and we chatted almost as usual. I asked if he’s ok with chatting, he said yes and that he just can’t see people. We chatted every day for about a week. And it seeemed to me that he was coming back to normal. He texted first one day, was making jokes etc. But the next day he replied to my messages late at night. And then my next messages are left unread. I just answered his messages and sent a meme. I was trying not to push. Never asked how are you feeling or when we meet. Just chatting about neutral things mostly.

I see that he’s online and reposting memes like 10 times a day. But my messages are not read for 10 days now.

When I read our chat over again these days I see this descent in the mood. At first the messages were long and quick, and just I don’t know… I read it as a book, because they are smart and interesting. The same was at the date. Full of energy and ideas. Then he started being more reserved, a bit rude even. And now disappeared on me at all.

So I don’t think that he’s simulating or something but we didn’t discuss directly like he has bipolar or adhd or something else.

When we were chatting in the beginning of his down times he mentioned that he just goes to gym and stares at screen to prepare himself go back to the world.

So, I don’t know how to take this. It’s been 10 days of silence and almost a month since the first cancellation of a second date.

I understand that we’re not in relationships. Moreover we both don’t want to be in classic relationships, just spending some good time together once in a while. But it all stopped in the very beginning. And I don’t know if he comes back, and it’s torturing me. Should I accept it as rejection and move on? Honestly I don’t want that, it will be hard, because I really like this person in many ways. I’m attracted to him and feel warmth when he’s around. But I hate bothering people, and I don’t want to intrude on their personal space and make things worse.