There are many rules of Love because of the wiccan rede. And believe it or not you don't want to affect with free will. Or you will pay dearly!

1. Never do love magick if you feel the person does not love you already. Love magick is for increasing love not building it.

2. Any attempts to build love or to tamper with it or play around with it will come back on you three fold.

I could go on and on but I will not because I think that you have an idea, also take a look of the wiccan rede It should help.