Appreciation
A good relationship can withstand a lot of difficulties. It may even endure cheating and lying if there is enough honesty and real dedication. A lack of respect and appreciation, on the other hand, is something it cannot recover from.
It’s evident from this story that the partner went above and beyond to help their spouse through her difficult financial situation, even though she wasn’t putting in the same amount of effort. The partner definitely deserved more appreciation and recognition for what they did.