If someone is capable of loving his partner without restrictions, unconditionally, then he is manifesting the love of God. If the love of God becomes manifest, he will love his neighbor. If he loves his neighbor, he will love himself. If he loves himself, then everything returns to its proper place.
Love always triumphs over what we call death. That's why there's no need to grieve for our loved ones, because they continue to be loved and remain by our side.