AP Despair stacking infinitely?

Physical effect: 'despair' modifies morale by -25 for 48 hours. Commune: 'bless' modifies save vs spell by -14 for 45 hours. Commune: 'bless' modifies hit roll by 7 for 45 hours. Physical effect: 'despair' modifies morale by -25 for 39 hours. Physical effect: 'despair' modifies morale by -25 for 36 hours. Spell: 'slow' modifies dexterity by -4 for 9 hours. Power: 'resistance' for 6 hours. Power: 'truesight' for 4 hours. Power: 'truesight' for 4 hours. Power: 'spellbane' modifies save vs spell by -17 for 2 hours. Every time we reengage I get despaired significantly, for a very long time. Seemingly ad infinitum.