Now I finally recall of the new theory I have thought of yesterday while walking home, which attempts to explain why all these are happening (to me).

Maybe because girls jus like/feel the need to protect guys when they are down. So when someone (or sometimes known as best friend) met with all sorts of problems, or even when he was down, I like/feel the need to protect them by listening to them, encouraging them, being with them, concerning them. Maybe.