1. Welfare or what’s best for minor children.
2. Financial considerations. She may not be able to make it on her own. She also might worry leaving for “someone else” may not work out long term. Then she is up a creek without a paddle.
3. While an affair may be a diversion from problems it isn’t necessarily a permanent answer. Her lover may be exhilarating for a few hours meet up but long term may have as many personality flaws as her current partner.
4. Acceptance by friends and family You may lose 50-75% of your friends in a divorce. This isn’t acceptable to most people. They prefer to lead a double life as many families may judge their decision harshly.
5. Change is hard. Women who divorce go through tedious changes. Separating their credit, who gets custody of pets, name change, change of address (even the city she lives in) children’s acceptance. These changes are daunting even for independent confidant females.
Many of my friends have struggled with these unfortunate realities.
6. In spite of one’s morals some women simply think divorce is “wrong”.
7. Believe it or not great sex isn’t everything. 98% of your life is spent dealing with non-sexual issues. Maintaining a great relationship is more difficult than one imagines. Taking one’s partner for granted often takes place with familiarity. Great relationships take great communication and work!
Hopefully this answers your question?