Original sentence: Bowlby rejected psychoanalytical explanations for early infant bonds including the Freudian and early object relations "drive theory" in which the motivation for attachment derives from gratification of hunger and libidinal drives.He called this the "cupboard-love" theory of relationships.In his view both failed to see  attachment as a psychological bond in its own right rather than an instinct derived from feeding or sexuality.The psychoanalyst Margaret Mahler interpreted ambivalent or aggressive behaviour of toddlers toward their mothers as a normal part of development, not as evidence of poor attachment history
Edited sentence: He called the latter the "cupboard-love" theory of relationships.However, Bowlby rejected psychoanalytical explanations for early infant bonds including the psychoanalytic belief that infants' responses relate to their internal fantasy life rather than to real-life events, and the Freudian and early object relations "drive theory" in which the motivation for attachment derives from gratification of hunger and libidinal drives.In his view this failed to see attachment as a psychological bond in its own right rather than an instinct derived from feeding or sexuality