Long-term monogamy depends entirely on the people involved. There are many couples who are happy to spend their lives together.
When there is abuse, or irreconcilable incompatibility, IMO the best thing to do is terminate the relationship. No one should feel obligated to remain in a situation that is not meeting their needs and supporting their dreams.
When there is abuse, or irreconcilable incompatibility, IMO the best thing to do is terminate the relationship. No one should feel obligated to remain in a situation that is not meeting their needs and supporting their dreams.