
no i think not. Because if you put it in natori's place, he wholeheartedly said that it was okay for seo to continue his job, but of course it's human nature to atleast feel jealous/bad about seeing your partner filming an AV with other people. He's fine with it because it's seo's career but it doesn't mean he can't feel insecure about it, and it doesn't help when Seo's not able to explain the situation to Natori before the filming. He just plainly said not to hang around with Jun without explanation, and he simply got angry at Natori for wanting to hang out with Jun (since he doesn't even know his personality)
I mean, Natori had accepted that it's seo's work and had agreed to it as he continued to stay in a relationship with Seo, just like any sane person would because it's all work and seo is in love with natocchan. But of course, seeing it in actual person can make a person waver too. Jun you fucker, you just had to bring Natori there to make him feel bad.