On the 12th July I just trimmed off the leaves that touch the floor, ones that can be seen in the earlier photos, but 2 days later it's drooping. I'm going to get some fertiliser now.
Well, after some reflection I decided to try a recovery job. Instead of cutting her up and attempting a replant (could't bring myself to do it after 5 weeks of growth) I just lifted her up and moulded compost around her, covering the exposed white damage of the stem.
Fingers crossed over...