If you're T2, forget about eating chocolate. Anything with sugar is not good for diabetics. Trust me, I've been T1 for 23 years. Keep your blood sugars in the normal range and don't eat anything that's going to spike them quickly. It'll just lead to more carb cravings anyway.
Don't use any artificial sweeteners. Especially not Splenda. That stuff is so chemically that they (appallingly) tested it on Beagle dogs before it was approved for human consumption. Use stevia and you can't go wrong.
If I really want a treat I make a kind of low carb trifle with some blue berries, stevia and whipped cream. You could had 100% cocoa powder to the cream to make it chocolately. You could also try making an iced coffee made with whipped cream, coffee, ice, stevia and cocoa powder. Everyone likes a treat now and then.
Eating fruit regularly is not good for diabetics. There are some foods on TPB that not everyone can enjoy.