Haha. This is all hilarious. You're all correct, it's apparently a tomatillo plant. The funny part is when I bought it from the local store, it had a cluster of grapes growing on it. The squirrels made quick work of that single cluster of grapes and then it flowered and started growing those...
I have these strange things growing on my plant. I have no idea what I'm doing. Simply purchased a grape plant from a local place and wanted to grow some grapes, possibly make some wine next year after learning some more about the health of the plant, etc... but now all it's doing is growing...