You can't really fully. Well you can try through magick but it's going to take awhile it's something they have to work out on their own. Do ansuz into each of the persons chakras then affirm __________(name of person) is completely and totally free of all connections influences and programmings of __________(name of ex lover) the higher the reps the faster it happens but also the more effort you have to put in.
When saying the affirmation 9 times after doing the ansuz visualize Satanic Blue fire burning the links.