What to do when the self-sabotage feeling kicks in?

Hey, guys! I (27F) have been recently struggling with a feeling that I’m not important to the person I’m seeing (29M). It’s making me want to self-sabotage, and I’d like your advice.

I’ve been seeing this guy from the gym for about a month. We’ve known each other for over two years and I care about him a lot. For the past three weekends in a row, he’s been the one asking me out, and we’ve had a great time each time. This weekend, though, we didn’t go out. At the end of our last date, he said he wanted to see me more often but worried that I was busy with college and didn’t want to bother me. I reassured him that I could make time for him, but he kept repeating the same thing. That’s when my mind started spiraling, thinking, “Maybe he doesn’t want to see me anymore.”

I tried to be reasonable and considered the possibilities:

1. Maybe he was being sincere about respecting my time.
2. Maybe he’s running low on money and feels awkward about it (he always insists on paying even though I’ve offered to split the bill).

Since I didn’t see him all week this week (I was sick and missed the gym), I texted him to check in. Neither of us are big texters; we prefer talking in person. But I wanted to reach out. The conversation went fine: he asked about my exams, returned my questions, everything normal.

Here are my last three messages to him:

1. “That’s okay! Whenever possible, you have to take the chance to relax a bit.”
2. “I thought it was impressive those 105 kg you lifted the other day as well, that's crazyyy. That probably makes you relax too.”
3. “🙂‍↕️ I'm going to take it easy though (at college).” ⁠

He didn’t respond to these. Even a quick heart emoji would’ve been enough for me, but the silence made me feel… ignored. Last night, I started spiraling again and it wasn’t nice but I tried to control it. In the past, I’ve been ghosted by people I really cared about (my best friend of 11 years and someone I’d been dating for a long time), so when someone doesn’t reply, I feel deeply rejected and want to leave before they leave me.

Any similar experiences? Any advice? Please, be kind. I’m dating after a whole year, after really bad experiences and I’m trying my best. Thank you all!