Some herbs and plants can by tradition be used
to ensure fidelity. You do have to have a firm
belief that you have a right to another’s
devotion before imposing your will on them.
Using a spell for fidelity amounts to a binding
spell and you must make allowances for the
person’s own integrity. It should always be
remembered that it is unwise, and sometimes
unhelpful, to both parties to hold anyone in a
relationship against their will.