At 55.10 Catullus addresses a group of prostitutes who have ensnared his friend Camerius as pessimae puellae. I'm tempted to read an intertextual insinuation that Lesbia, as pessima puella, is like a prostitute who holds men hostage. Could be a stretch? But if we read this insinuation, then Catullus has already decided not to cease hurling iambs at Lesbia