Well, I don't do love spells for personal reasons. However, just because I don't want to do them doesn't mean they can't be done.
Love spells do work. The only problem that people can see with them is that they tend not to work exactly as the practitoner wanted, but that can happen with any spell to be honest.
There is no "rule" being broken. Only suggestions. If I do not follow the Wiccan Rede, the rules of it do not apply to me, thus I am not breaking anything, ya know?