We usually travel as a couple and compare whether a combined policy is more convenient than two separate policies. You can learn more about coverage for Spanish residents at https://www.globelink.co.uk/policy-options/spain-travel-insurance.html A combined policy allows you to cover the same dates, territory, and risks. It's also worth checking whether cohabitation or official registration of the relationship is required. What type of insurance do you choose for traveling with your partner?