Why did this girl do this what did she have in mind?

I go out to shoot hoops and workout and i notice a girl/guy watching me play especially the girl then i rest i sit down and the guy leaves and the girl gets close to me and starts talking to me? She keeps asking questions,etc? And the guy is far away but he sees that the girl is talkin to me and starts walkin bak and the girl gets upset and forcefully leaves ? Was she trying to get me to do her or what? I was tired i wasnt even there and shes all into me?