What is characteristic of the diseased mind is not ambivalency but resistance.
Once admit this, and the primary importance of ambivalency disappears so far as negativism is concerned.
(g) Sexuality with its ambivalency on the emotional plane is often one of the roots of negative reaction.
"simultaneous conflicting feelings," 1924 (1912 as ambivalency), from German Ambivalenz, coined 1910 by Swiss psychologist Eugen Bleuler (1857-1939) on model of German Equivalenz "equivalence," etc., from Latin ambi- "both" (see ambi-) + valentia "strength," from present participle of valere "be strong" (see valiant). A psychological term that by 1929 had taken on a broader literary and general sense.
ambivalence am·biv·a·lence (ām-bĭv'ə-ləns)
The coexistence of opposing attitudes or feelings toward a person, an object, or an idea.