Best guy friend was wrestling with me... (i'm a girl) ...?

Hunny that is his way of showing without having to say it outloud to your face that he likes you. He was definatley flirting, take advantage of it next time do your best to prove to him you can take him, it'll give him some more to think about. Guys like it when you try to be tuff while wrestling with them, I think it makes them feel more "manly" or stronger.