I think Ms Kelly that Mary had seen better days, although her looks and youth probably still offered her some marketability. For now. She was apparently a finely dressed woman a few years back, and accompanied by what we might assume was an affluent gentleman to Paris...a trip which was also apparently abbreviated for some reason. Its worth mentioning that there is no mention of finer clothing in that room, one might assume it had been pawned some time before she moved into the court.
I think the evidence suggests that Mary is on the decline, and also that her interest in the lifestyle has waned. She would rather just have someone like Barnett look after her. Or perhaps the other Joe she was seeing behind his back.
Except that Mary Jane Kelly's Paris sojourn depends on her say so. It might be a total fairy tale. My thought is that most of these women had tales that they told about themselves to make themselves seem more exotic, interesting, or worthy of pity. In terms of the latter, Stride's tale of losing her husband and children in the Princess Alice disaster provides a good possible parallel example.