Im guessing the vase would deal with the issue of control via sex or being treated as a commodity due to being beautiful. All the baggage LQ's had to deal with and has left over from living at the brothel with her mom. Why she ran away.
She's calm about interacting with men who are courting her now because she knows them, knows they are not those type of men and has to come trust that nothing will happen just because they are men.
She also is more inherently confident in her own power now, she's conquered more of her fear.
But I'm still curious about what she thinks regarding the act of sex, whether she can consciously handle her own feelings of sexual attraction towards others or will she just shut them down again.
Yes, she's in engaged in a bit of flirting but I see that as romance, emotional intimacy.
The only suitor she's ever shown a hint of physical attraction towards is Bao Qian, a while ago.
Is she comfortable with the idea of sex now?
The ink pot likely deals with debt or financial insecurity, maybe what the Hui come up with for those who owe them money.
Of course I want both stories but I'd still rather hear from whoever that vase is. Ling Qi should continue to face her trauma, she's better for it and it makes a great narrative.