LOL, you want all the goodies, you want to make the girl fall in love with you - while you are going out and screwing another girls. Dream of all seducers!
Couple points. You can't MAKE her fall in love with you really, that is beyond our (guy's) capabilities. When she constantly thinks about you, she is simply imagining how good would it be if you two were lovers, and that is how she falls in love. You do the same by constantly thinking about some girl - you go home and think, think and think, you dream - and a couple of days later you realize that you are in love...
There are tricks, clever words, patters and imagination how to "trick" her to like you, but I wouldn't do it. It is fake, it is for weasels...
There are many variables why girl(s) likes one particular guy more than the other(s), why they fall in love with one guy and not another one. All GC site is basically a description of how to increase your chances with girls, how to become more attractive, how to do the 'right' stuff so she can fall in love with you, or at least sleep with you. Or both.
There are always limitations though, even though you might be doing everything 100% right it doesn't mean that she will fall in love with you. She may dump you on the spot anyway. At the same time, you could be doing many things 'wrong' - and she could still fall in love with you...
A common misconception is, that a guy thinks he will learn seduction and thus will be able to seduce all or most girls that he wants. That is not correct. It always takes two to participate in potential interaction, and even if the maximizes his changes by becoming really good with girls - she still have to contribute herself to the interaction, so to speak...
There is lots of things you can improve to maximize your chances, such as:
Learn to recognize which girl is 'open' to you and which not. It will save you lots of time and you will avoid lots of rejections.
Don't chase, don't be needy
Develop abundance mentality, assume attraction
Get your life together. Many times guys simply can't get good girls because they have no life, they flow through the life with no purpose, no motivation, they are just being silly and lazy, all they want is to play and fool around. Ok, she may sleep with him couple of times because she is bored and he is sexy enough - but does she really want to live with a loser? If she is smart, nope.
Work on becoming a man. This one is IMO the biggest one and the basic one. Do masculine things. Do things that show that you have testosterone and adrenaline. Girls simply want to be around man who has a spine and who is not a pussy, a man whose got life to live, a man whose got balls and who is not afraid of "things", a man who is not afraid of girls...
