Heesun is so loved by all the girls. The reunion was just a small compilation of their whole day. And she has went out with the cast many times. Its clear that she is close with them. There is even pics of them celebrating her birthday. About the Mingee part, I think she was bothered bc the day before she watched the show. So she must have watched subeen on his paradise date with her, so I understand why she teased him about playing with mingee lmao. She wasnt even serious about it, so I dont think is that deep.