Que Sera, Sera

Que Sera, Sera
Whatever will be, will be
The future's not ours to see
Que Sera Sera
What will be, will be

Friend L replied "What will be, will be" when asked about her single status. Is this being optimistic, or simply just leaving it to fate? Do we really need to make an effort to meet people or can we just be content with the people currently in our circle, be it uncles, married men and friends whom we have grown to be so comfortable with.