Read this order
Coffin → Heart: An ending with emotional weight. This may describe grief, a farewell or feelings that remain after something has finished.
What changes in reverse?
Heart → Coffin: An emotional bond coming to an end, or affection that has gone quiet. The surrounding cards help distinguish a pause from a lasting closure.
Heart → Coffin ↗A practical example
A farewell after a relationship changes can fit this pair. Heart + Coffin focuses on an emotional bond becoming quiet or closing. Coffin + Heart focuses on the emotional weight of the ending. Neither proves that a breakup will happen.
Check it against your question
Keep the actual order and ask which part of the example fits your situation. An example illustrates a possible reading; it does not establish facts or promise an outcome.
The meanings behind the pair
Coffin: Coffin marks an ending, closure, exhaustion or a standstill. Some situations finish; others need a pause before anything can continue.
Heart: Heart is love, affection, enjoyment and emotional attachment. It shows what carries emotional value in the question.
These examples show possible ways to read the pair. Your question and the other cards may change the meaning.