Unwanted hickies?

Me and my guy are pretty comfortable around each other. He’s very gentle and caring. However, he knows I like being dominated a little and throws that into our romantic life often which is great! He stopped by the library earlier, we chatted, I told him I was seeing family over the weekend, we got mushy and things heated up. He pulled my head around and started kissing my neck, I giggled it off and said “honey I’m with my parents in a couple days, you can’t give me a love bite lol”

But because we’ve established this kinda dom/sub relationship, he persisted.

I think the issue is I’m being too playful in saying “no”, but I really am trying to get away (my parents would see it as disrespectful), and I think this eggs him on. He held me down and gave me one, and I kinda just laughed it off like “ugh I told you not to you asshole!” I find it hard to be serious with him, so everything gets giggled away as nothing big. And now there’s a big ugly welt on my neck🙃