What's your question? Ask

If the melons were being eaten, you would probably see the signs of damage. Check for any bits of leftover rind or

I'm not sure what the problem could be, though I've heard this can be a difficult plant to grow. Flowers can sometimes be killed by high temperatures. Or, low phosphorus levels in soil can lead to poor fruit production. You could try adding a phosphorus supplement like bone meal.

I don't see any Sooty Mold on the plant.

Here is a link about Sooty Mold and how to identify it.

https://www.gardeningknowhow.com/ornamental/flowers/camellia/sooty-mold-on-camellia.htm

Your Camellia should be planted in 'dappled sunshine', I think your plant is receiving too much sunlight.
Check the watering and drainage also.
Is this a new planting? Water newly planted shrubs more frequently, but properly draining soil will help with excess moisture.

Fertilizing is important for healthy Camellias.

Here are some links to help refresh you on the care requirements.

https://www.gardeningknowhow.com/ornamental/flowers/camellia/identifying-and-fixing-problems-with-camellias.htm

https://www.gardeningknowhow.com/ornamental/flowers/camellia/growing-camellias-how-to-propagate-camellias.htm

https://www.gardeningknowhow.com/ornamental/flowers/camellia/caring-for-camellias.htm

https://www.gardeningknowhow.com/ornamental/flowers/camellia

6 plus hours of sunlight is needed.
Container plants need daily water and even twice a day if temperatures are above 85 degrees F.
I have heard many reports of these plants slow to set on fruit. You can try self pollinating but also give the plant more time.

https://www.gardeningknowhow.com/edible/vegetables/mexican-sour-gherkins/what-are-cucamelons.htm

I would do a Google search for sellers. Try Ebay or Etsy, they are often sources for seeds and plants.