Platonic relationship could be applied to friendship or love. This involves care, compassion, empathy and emotional feeling.
You can love a person sincerely, honestly and wholeheartedly in the absence of sexual desire. You could be both the anchor or shoulder to cry on in times of failures, distress, feeling worthless or in whatever circumstances like trials and tribulations. You could share your secret with trust without hesitation. Both could enjoy the goodness of that relationship for a lifetime.