He put the belt around my life
belt/buckle snap
Wedding ring imagery displaced to a belt—more restrictive, less romantic. The snap is audible and final, like handcuffs clicking shut.
imperial
She turns away with dignity, not submission. The word choice matters—she's claiming power even as she's being bound.
member of the cloud
Biblical language—the 'cloud of witnesses' in Hebrews 12:1. She's joining the dead or the consecrated, removed from earthly life.
For whom I must decline?
The final question is rhetorical and pointed. She's already bound to someone/something that outranks all social invitations.