'A girl I met was willing to bet that she still lived on- anon- but had packed it all in, the best verb, the right noun, for a life in the sun.'
The woman the poet meets represents all women, this persona convinced herself she was fulfilled despite abandoning her ambition. 'life in the sun' is a metaphor for the least stressful solution. choice between motherhood and career- narrator believes career is the only fulfilling option. 'the best verb, the right noun' metaphor for the alternative choice, career and development of her skills that she chose to 'pack in'