So I was at an open party at the beach and approached two girls, asking trivial stuff like "when will the party start". The cutest one was very friendly but her friend kinda made some poker face and answered my questions a bit bluntly. Fast forward a few hours I encounter then again and this time I tried hitting the cute one. All of a sudden her friend intervened and said to "leave her friend alone" in a very rude manner, as if they were a lesbian couple or something. Of course that was a lie, I know a lesbian couple when I see one. But what got me curious was why she had to intervene. Should you win over every girl in a group so you can be with one of them? Is this some sort of cockblocking?