There are many, many different kinds of Love Spells. There are a couple of things to remember before casting these very powerful love spells.
Never cast a spell that includes words you don't understand. If you want to try that spell, change the words!
A spell that is designed completely or partially by you has a closer connection to your personal power. It will be easier for you to do and more powerful and effective. Feel free to tinker, but keep good records in your spellbook so that you can repeat the successful ones if desired.