bears a grudge

• resentfulFeeling lingering ill will
• bitterSharp, unpleasant taste
• vengefulWanting to harm back
• spitePetty malicious intent
• grudgePersistent resentment toward someone

animosity · unforgiven · scorned · wronged · simmering · festering · brooding · seething · cold shoulder · payback · revenge · hostile · unforgiving · slighted · wounded · nursing · offended · betrayed