Sometimes when girl meets boy, the boy becomes the saviour of the girl. The girl loves the boy, cares for him and showers him with attention because she believes to finally have found somebody who she can invite in her home to fill up her empty spaces.
However, in this case, the boy only came with one suitcase holding all of his love and belongings, and you cannot build a life out of one suitcase. Giselda opened up her heart and house for the boy anyway and poured all the love she had in the boy's suitcase. She thought love worked like that, and maybe that’s true. Only the suitcase of the boy stayed shut while her house was getting emptier and smaller. In the end, she even had to leave her home and put all that was left of her in her own suitcase and leave. Her saviour had gone and left her travelling light.
But Giselda is strong. She realized that love is love, and the love she carries now is for herself. She travels towards the light quietly singing to the guy with the one suitcase:
‘your travelling light,
has left you alone’