My explanation

Current means financial status. Energy consumption means money consumption.

1) parents: "稳定的作用" (they gave if you are in trouble. They took if you are rich.)

2) friend: when you spend less for yourself, they leave. when you spend more, they come.

3) wife: will be removed during disaster

4) self: when income is less, reduce spending to support living standard

5) house: to show off (brighter if current is larger)

6) kids: runs better with a strong financial situation

7) diamond ring: ???