I think that the fact that the Nurses are fundamentally happy with one another is where resentment is evident. Rebecca Nurse is described as one who is happy with her own sense of being in the world. She is not described as one who is envious of others or desiring upward mobility or social advancement. She is content, and seen as a force that could inspire envy because of her own sense of happiness. Mr. Nurse is much the same way. Not someone who uses people as means to an end, Mr. Nurse was instrumental in ensuring that the head priest before Reverend Parris was someone who shared his own beliefs. This was contrary to and over Putnam's endorsement, a family member whom he wanted for that position. This ended up causing a schism of sorts between the Putnams and the Nurses, but it more seemed to inspire a sense of intense jealousy in the Putnams. Adding to this would be the death of the Putnams' children, something that Rebecca Nurse had never had to experience herself. It is here where I think that the Nurses end up initiating resentment in other characters, most notably the Putnams.