Mariner. Dont make assumptions about a Teshuva of R’Moshe Z’l without having seen it. When I get home later today, I will bli neder get the exact siman of the teshuva. He discusses at length the general Lav of Lo Sikrivu Ligalos Ervah and all it entails in a very practical day to day setting and how it applies to both males and females. The Teshuva is found in the Yad Moshe index under “social dating” because that was the subject of the specific question asked, however the answer covers that, and a lot more.
I think a lot can be learned by what he says. I am not concerned about what he does not say or what people want to infer or not infer.