If you feel the bond in your relatinship starting to weaken you can help protect the relationship and remind your love of your essence. But remeber this will only work if it truly was meant to be. You cannot hold onto something that is not there, but if the love between you still remains, but something has but a strain or distance between you, this can bring you back together again.
Make your lover a strong cup of coffee or tea and add some of your nail filings to the drink to remind him of your essensce. It can be a very potent spell if it is done with proper motivation.