ingrate

She was even sweet to that smug ingrate Miss Bunting after she kept insulting everyone at dinner.

It is the torment of him who loves to become, despite himself, the slave and accomplice of the ingrate who feels himself beloved.

But you have remembered me, Edith, even in the depth of your joy, ingrate that I am.

I, the recipient of the master's favors, an ingrate and a wretch!