The symbol that represents your love is not ever an object, but a memory or memories.
That is the symbol that represents your love.
A memory or memories of the times you enjoyed each others company, even times you were angry at each other. But to know that they were by your side, that is all you need to know. Cherish the moments that you have with your loved-ones whether the memories are good or bad because they could be gone the next second.
And when they are gone, just remember the memories that you had with them because they will last forever in a person's heart.