Conversation so far:
How was Georgette Heyer's marriage life?
In 1925 Georgette Heyer married George Ronald Rougier, a mining engineer.
Did Georgette Heyer and her husband George Ronald Rougier have a happy marriage?
George Ronald Rougier and Georgette Heyer were both madly in love with each other though not without a bit a financial difficulty on her husband's behalf.
What happened during Georgette's marriage?
Heyer became the primary breadwinner. Rougier purchased a sports shop with money borrowed from Heyer's aunts. Heyer's brother helped Rougier, while Heyer continued to provide most of the earnings.

Question: What led to her wanting to return to England?
Self-contained rewrite: What led to Georgette Heyer wanting to return to England?