Thigs were going fine until we got to game. We don't have any agreements over a reverse so I decided to show partner I had a good hand with heart support and potential slam interest if she had a good reverse by going through FSF. Unfortunately she corrected to 4♠ not getting what I was trying to tell her (and she was worried about her poor heart suit). I took 4♠ as slam going, so cue bid. When she then bid 5♠ it was clear we were not on the same wavelength and the bidding stopped there.
Partner had a poor reverse (I wouldn't have reversed on that, I think I'd rather open a strong NT or bid 1NT after opening 1♦ (we were playing weak NT). The working spade finesse gave me hope, but the 4-1 heart split killed it and I went one down. Not the worst disaster I've ever had, -5.5 imps.
I have now suggested to partner we play Lebensohl after a reverse.