I agree with Sekhmet on this one. There are ways of attracting love into your life without forcing someone to do it.
If you have to force someone to do something against their will, it's not love, it's lust. And lust fades over time, and then where will you be? And then there's always that chance that the person you cast the spell on will find out how in the world he fell for you, and how would you explain that? Do you think he would love you more for it?
It's not wrong to desire love in your life, but if you have to make someone love you, you're really not sending a positive image of yourself out there, are you?
There are certain things that we just have to leave in the hands of the Universe. We should look for ways to use magick for the good of all involved, not just to force ourselves on others.