Forehead Kiss/Affection after Casual Sex! Help, So Confused?

Anonymous
Forehead Kiss/Affection after Casual Sex! Help, So Confused?
I've just started having casual sex with a guy that I've known for a year, and last weekend we had sex for the first time. Before we were both clear about it being on a casual basis so I knew what to expect going in.

We had sex at his house and he assumed I was sleeping over afterwards, whereas I assumed I would just go home. I ended up staying, got up in the night for a bit and then went back to bed. When I did, he put his arm around me and after a few minutes with my eyes closed, leaned across and kissed my forehead. It wasn't a quick peck like 'you look cute, goodnight', it lingered and went on way too long for our agreement/what we are to each other. I didn't know how to react so I kept my eyes closed, pretending to be asleep as (I assume) he thought I was.

It felt like being kissed by a boyfriend. Long, intimate and affectionate, like there was meaning behind it. Also, this was quite a bit of time after we had sex... not before, during, or straight after. He had been asleep and only woke up as I was getting back into bed. It might sound minor, but I'm really confused by it. Why do something so affectionate, caring and romantic when it's meant to be casual? We kiss on the lips because we have physical/sexual attraction, but he's not someone who lets on much or is particularly open, and I can't imagine him ever kissing me like that if I was awake or generally being affectionate in any way than sexual.

I'm not assuming he has feelings for me, but it seems odd for a casual sex agreement. Maybe he just genuinely cares, but it felt like more than that. And why do it when I'm "asleep" and wouldn't know anyway? I wonder if there's more to it than he lets on, and was acting on it when I'm supposedly unaware.

Do you think it's possible to casual sex with someone that you care about, but not have feelings for them? I thought this was the case with us, until recently.

Just trying to give it context :)
Updates
+1 y
Don't know how relevant this is, but I know for a fact that I'm the first person he's slept with in at least a few months, and vice versa. So we're not exclusive and it's only just started, but equally he's not someone who's sleeping with different people every weekend either (and neither am I, he's only my second sexual partner in fact).
Forehead Kiss/Affection after Casual Sex! Help, So Confused?
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