^
Rika said that Miyabi looks like a girl who is experienced with boys. How is that outing? Also, Miyabi is not like most other idols. When she is at hand shake events she will grab wota's hands and pull them closer to her.
And, of course Sayumi looked uncomfortable. She knew that she would look cuter if she was uncomfortable.
I have no insider knowledge of the private lives of h!p idols. They all very well may be dating. But, they deny this, so I will give them the benefit of the doubt.