Yes. Although you cannot take away her right to complain against you to the police, you can restrict this by using sanctions against her negative behaviour. The Prevention of Violence Within The Family Act of 1991 includes a mechanism for compensating someone who has *been arrested/held in custody falsely or * had protection orders falsely made against him without a real reason. Someone who applies and gains a protection order without justification , spitefully or frivolously, is likely to find him/herself liable for costs, both to the victim and the state, and for generous financial compensation to the victim. Using this mechanism /these sanctions could prevent this kind of bad-faith behaviour by acting as a deterrent.