I would send to my boy/girlfriend 999 roses. Why? Because in other countries such as China, the number 9 is represented as the number of pure love, that meaning that whoever you’re going to give the beautiful roses to, they will know that your love for him/her is endless and will burn for a whole eternety. The flowers could go brown and lose their life, but nothing could make the gift be forgotten if the person you gave it to knows how to appreciate it and loves you.