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Can you pinpoint the source of the leak?
Are you able to upload a picture of it?
Those quick connect fittings seal on o-rings. You likely have one that is torn. Can I see a picture of the faucet too?
I think the water leak is coming from your cartridge. Do you know the brand of your faucet?
In that case I'd call a plumber and let them know. If it's the faucet itself that's leaking water will down through the the countertop hole and runn down that hose then drip.
Is there anything else?
How's the leak going?