My History With Hoya darwinii Part One

My first Hoya darwinii plant was purchased from Gardino Nursery on eBay way back in 2013. It was small, had about 10-12 leaves, and did not last very long at all. I had it growing in soil in a grow tent under T-5 fluorescent lights, and it began to lose leaves almost immediately. Below the buds on the plant: