I also love jackfruit curry. I first had it in Sri Lanka as well, where I went on a cooking tour and had it in several families' homes. Each families' was a little different depending on their particular mix of spices, but I loved it all. While I've been busy I continue to buy the frozen jackfruit curry meals at Trader Joe's, but I'd be happy to pursue making my own now that I have more time!
The one thing I was told, but have lamentably forgot the exact details of, is that you have to use the jackfruit for different things at different periods of ripeness. Most particularly that the meatiness/appropriateness for savory recipes happens at a different point in its maturity than when you should use it as we Americans typically use fruit, or as a sweet/dessert item. Unfortunately, I don't remember which ATM, but assume it's all available online. But the bottom line is, if you weren't happy with the flavor of the jackfruit you've previously had, maybe get it at a different stage of ripeness and you might like it a lot better.