Should I pay him back my half?

So, I don’t want to detail the background of the situation because it is a bit oddly specific. But I (24F) have a guy friend who knows I have feelings for him, and at one point he had feelings for me too, but the timing was bad and nothing ended up happening. After that, we didn’t see each other for a while, but we kept occasionally texting.

We met up again about a week ago. It was my idea (although I think he hinted at it beforehand) and I wasn’t sure what I wanted to happen, but I dressed for a date for the following reasons:

1) Last time we met, after I confessed, he made an effort to look good, and I didn’t, and I think part of me wanted to make up for it.

2) He asked if I wanted to meet at his place, and after what happened last time, I coded that as if he was asking if I wanted to hook up. Even though I was at his place as friends before, so it could have been totally innocent.

I am not comfortable with zero build up, I am not even sure if I’m comfortable with hook ups at all. So I thought that if we met somewhere else, then, if he wanted something to happen, these circumstances will make it more likely that I’ll want something to happen too. And if either of us didn’t want something to happen, we could still hang out.

It quickly became clear that he wasn’t there on a date and didn’t want anything to happen after. I was cool with that and we had fun as friends (at least from my perspective).

But here’s what I’m worried about:

When we were told that we had to leave soon, I went to the bathroom. While I was in there, he payed for me. I only realized what happened once I got home, after totally freaking out that I might have left without paying. (No, I do not have a lot of dating experience lol.) I was too nervous about the whole situation with him and I just totally forgot. But I texted him, asked him, he clarified, I thanked him and told him I would pay next time. And that was it.

Until today, when I found out that going to the bathroom was a common trick to make the other person pay. (Again, almost zero dating experience.) I did not intend to make him feel like he had to do that and now I’m really worried that I unintentionally forced him into it and made him put himself into a date-y situation, even though I knew he didn’t think this was a date.

It bums me out because the emotional part of me was hoping that he payed because he had a good time and wanted to let me know that he was okay with this being a date, even though he wasn’t prepared for that.

But mainly, I’m just really anxious that I might have hurt him psychologically and/or financially.

Should I apologize and pay him back? Or apologize but not pay him back? Or pay him back but not apologize? Or just let it go?

(We separated on good but friendly terms. Although I did ask him again about his plans after, so that was another mistake on my end. We didn’t text each other since.)