I got back from a week away to find two bunches of bananas ready to pick - the one in the photo and another which was 1.5 times as big.
The bigger one was on the fence line and it had been eaten steadily by possums on the neighbours' side from us - I should have looked more carefully! - but there were still about 60 left for us, as well as maybe 100 on the other bunch ... that's a
lot of bananas.
Mike, you won't get any fruit until your plant is big enough and warm enough to flower. If you take it outside, it will get too cold and die back; if you don't, it is unlikely to get enough light or water (they like wet feet) to grow big enough, and it might then be bumping the ceiling. (Some varieties only grow to 1.5 m or so but all the main varieties here are 2 - 3m.) I think you should just enjoy it for what it is.