disgruntlement

bitterness, resentment

aggrievement, disquiet, perturbation, uneasiness

blues, dejection, depression, desolateness, desolation, despondency, disconsolateness, doldrums, dolefulness, dolor, downheartedness, dreariness, dumps

misery, sadness, sorrow, unhappiness, wretchedness

antagonism, embitterment, envenoming

breach, breakup, divorce, rift, rupture, schism, separation, split

animosity, antagonism, antipathy, bitterness, hostility, jaundice, rancor

aggravation, furor, fury, incensing, indignation, infuriation, ire, outrage, rage, spleen, wrath

disenchantment, disillusionment