I don’t see any examples, however, if you look at your examples gloomy is similar to sad or dreary, and the opposite of cheery or happy, so look for that in your examples
Based off of the information given, the answers should be She is pleased with herself for making Higgins lose his temper, because she knows she hurt him and she only wants the ring for its cash value. This is because she goes automatically to look for the ring, which holds some significance. The way that you can tell she is pleased at making Higgins lose his temper is because she does an almost theatrical like performance that mocks his actions of leaving.