With feelings of bitterness or grief. (Merriam – Webster)
Full of resentment inclined to resent. (Merriam – Webster)
Caused or marked by resentment. (Merriam – Webster)
In a way that shows that you feel angry because you have been forced to accept something that you do not like. (Cambridge Dictionary)
Feeling or expressing bitterness or indignation at having been treated unfairly. (Oxford Dictionaries)
4 Psychological Signs You Resent Your Partner.