"[A]s people are beginning to see that the sexes form in a ce..." — Edward Carpenter quote meaning

[A]s people are beginning to see that the sexes form in a certain sense a continuous group, so they are beginning to see that Love and Friendship which have been so often set apart from each other as things distinct are in reality closely related and shade imperceptibly into each other. Women are beginning to demand that Marriage shall mean Friendship as well as Passion; that a comrade-like Equality shall be included in the word Love; and it is recognised that from the one extreme of a 'Platonic' friendship (generally between persons of the same sex) up to the other extreme of passionate love (generally between persons of opposite sex) no hard and fast line can at any point be drawn effectively separating the different kinds of attachment. We know, in fact, of Friendships so romantic in sentiment that they verge into love; we know of Loves so intellectual and spiritual that they hardly dwell in the sphere of Passion.