i agree with other sissess here. unfortunately, you cannot make someone fall in love with you. the feeling just comes naturally, at least in my case--with all that i have been in love with (bfs included)
for me, it all starts if someone and i have a connection. chemistry, is what they call it. if wala, nevermind. a guy can be soo gwapo, charming, intelligent and rich but if i don't feel any connection towards that person even a single bit, then all he is just another guy. admiration? possible. but attraction? love? cannot be forced, imho.
it's pretty much the same as saying you cannot help who you fall in love with/get attracted to.
if a girl likes a guy, she can magnify even the tiniest detail about him, or the simplest, most effortless of effort a guy can do (ex. a meaningless text greeting or a mere glance/grin will change the whole course of the day. hahaha); but there's a guy who can shower you all the gifts, the romantic dates, the sweetest words and the most clever of tactics known in courtship and a girl can still feel

nahhh. flattered, maybe.
then again, that's just me. siguro meron din namang ibang girls na madaling ma-develop if you play your cards right, who knows?