Help me find this manhwa

I read this manhwa last year. I didn't finish it and I can't remember the name now. My memory about the story is also very vague, I'll still try to explain it

The girl has a breakup with her boyfriend. Her boyfriend and she probably never really went on a date in expensive restaurants before. So she decided to go in an expensive buffet restaurant. She went there alone, another guy also went there alone. The restaurant was probably full so they were waiting and a worker came and asked them if they were a couple and they maybe had discounts for couples. So they played along, ate together. I think the guy also went through a breakup I'm not sure. After that they'd eat together from time to time from then. If anyone knows the name, help me out