It's really an adjective but also called an article.
Answer:
One way to rewrite this paragraph without figures of speech and idioms would be:
"We had the greatest vacation ever! We went to a beautiful beach. The sand was extremely white. We lay in the shade of the blowing palm trees all afternoon, watching the butterflies and birds. In the evening, the ocean was incredibly clear. We could look right down into the water and see coral reefs and bright fish. When I told my friends about it, they were all very jealous! They all said they wished they could have gone!"
reck: if she was really mad about it, didn't want to care for him anymore
reluc: if she accepted his actions right away and was understanding
apa: she knows what he's doing is wrong, and she can't continue to support him anymore
caustic: not being too happy about him acting this way