On the June 15 installment of 'Happy Together 3', Yoon Si Yoon talked about all the things he'd done for his past girlfriends. He revealed, "A past girlfriend liked pork stew rice. She said she missed the taste from Busan, so I drove there, got it to-go, and brought it all the way back."

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He then revealed, "When I say this, some people will think, 'Oh, I should try that', but I really recommend against it. They don't get touched. They get scared. There's only 10% of being touched and 90% of getting sick of it."

Park Myung Soo�joked, "It's kind of like going to Japan just to buy ramen," but Yoon Si Yoon responded, "I've actually done that as well. But it wasn't ramen, it was a type of castella�(Japanese sponge cake)." He explained, "I'm kind of the style who stops thinking rationally when I decide I should do something, even if it doesn't have to do with dating."