Related to the more harmonic relation, the given relation "is unsatisfactory and therefore results as unrelation" (p. 216). Therefore a dialectic emerges between a superior and an inferior relation, which, compared with the former, is unrelation.
Source: wiktionary
In their respective positions, these relations describe the realities of divine-human unrelation, divine-human relation, human self-relation, and human social relation.
Source: wiktionary
A better illustration of Lawrence's 'ignorance', and a fault which corrupts his whole philosophy of human relations — which is hardly anything but a philosophy of human relations and unrelations — is his hopeless attempt to find some mode in which two persons — of the opposite sex, and then as a venture of despair, of the same sex — may be spiritually united.
Source: wiktionary