That's not a good choice, It's ok to entice someone with magic, see how it ends up, But if they're a past lover. It's best not too, the magic plus the little amount of love they still have for you might mix, they'll become obsessed completely. Also, if it was a bad breakup or relationship, it might be dangerous.
I agree. Love spells can be dangerous. If you use a love spell be sure you know how to break the spell, just in case the person you cast it on goes crazy and starts stalking you or you might get bored with him and not be able to get rid of him.
Although I have used them in the past. It was a bad idea to try to force love where there was none. Personally I would just use a love potion oil blend and wear it as perfume whenever you go around this person.