I met a man from another prefecture through a papa-katsu (compensated dating in Japan) app.

He lives in the area where I’m from, and he said he was looking for a woman he could meet whenever he came back home during holidays like New Year’s or Obon, so I met him yesterday. Before we met, he suggested terms of one dinner-only meeting and three adult relationships (intimate). But since yesterday was supposed to be the day my period started, I told him in advance, “I can only do dinner this time—is that okay?” He said it was fine, so we just had dinner. While we were enjoying our meal, he asked how long I’d be off for New Year’s. I said until the third. He then asked if I had any plans, and when I said not really, he told me he wanted to see me once more before I went home. I said, “I’ll be on my period, so even if we meet, I won’t be able to have sex,” and he said dinner alone was fine, so we made plans to meet again. I thought maybe he liked me, but after we parted, he sent me this flirtatious LINE message: “I had such a great time today. I’m heading home while fantasizing about you, XX-chan.” Why would he say something so inappropriate?