I’m a 25-year-old office worker currently working remotely.

The bullet train would probably be in an ordinary seat, and the inn would likely be nothing special either. I really don’t want to go because the thought of spending a night with that older man sounds miserable. Dinner-only (no intimacy) at a hotel is enough for me, but his allowance of 80,000 yen is quite generous, so I’d still like to keep things going. I turned him down the first two times because I was on my period (which was true), but maybe because of that, he invited me for the third time specifically outside my period, so I can’t use that excuse again lol. He always specifies days when I can meet by adjusting my work schedule, so I can’t use work as an excuse. I already turned down a bizarre invitation to have lunch while looking at cherry blossoms (he offered an allowance of 5,000 yen) by saying I had a family memorial service, so anything involving relatives is out too. I’ve also mentioned before that my friends’ weddings kept getting postponed because of COVID, so I can’t use weddings or other family ceremonies either. The trip is a month away, so saying I already have another specific plan that day would probably seem suspicious. I’ve also told him that I’m close with my parents, so I can’t claim that one of them needs care or is sick. On the other hand, I can’t say yes and then suddenly come down with gastroenteritis right before the trip, since that would disregard the cancellation fee and all the effort he put into planning it. He’s basically an inconsiderate older man with bad breath, but we’ve been seeing each other for a year, and if I handle things well, it seems like we could continue casually for a long time. I don’t want to cut him off just yet. How should I turn him down?