woah, now that's tough. okay, erase everything lol. now, this would be easier, if for example you have a reputation in the dating scene. but maybe you're not seen that way, you're not the "now single" guy. but what's there to lose? let's do this:
as i've always believed, the best diskarte is harap-harapan. i'm gonna assume you're gonna start from nothing with her, just getting to know each other. she calls you "kuya", so that means you're on her "nice guys" list, assuming ha. keep it that way, or make it better, become nicer to her, be on top of her list. don't force the niceness, just do nice things naturally. like "oh nakuha mo na ba NINYO ang (note ninyo, don't single her out) sinend ko?", and then you know, keep the conversation going, act cool. if that were me, i'd tease her, "hindi niyo naintindihan no? haha" and then see how she reacts. now tell me, how would she react that way hunt? let's learn more about our subject