I have a mixed breed (mostly hound) female rescue named Pepper. She is a sad sweetheart who just wants to be loved. Kind of like me

Unfortunately, I am beginning to resent her because my wife and I got her because we thought it would make my wife happy, but I am the only one takes care of Pepper, and I am the only one that plays with her. She loves me more than my wife. All of which is a burden to me since I didn't want a dog in the first place. Just another thing I thought I did right that turned out wrong.