Pathetic fallacy - clouds are given the human trait of determination
Personification - external forces may be affecting the couple
"we walked", "we skirted", "we moved"
Semantic field of pairings - despite couple going through dispute, the repetition of the pronoun 'we' suggests themes of enduring and unconditional love
"like boats righting in roughweather"
Simile - difficulties can be mended ('righted')
The boat symbolises stability & continues themes of reuniting and unconditional love (they go through tough times together)