The weight of knowing your parents are sacrificing their happiness "for you" when you desperately wish they wouldn't must feel both heartbreaking and frustrating. At 26 and 23, you and your sister are old enough to see that staying in a loveless marriage often teaches more harmful lessons about relationships than divorce ever could. Have you and your sister ever considered having an honest conversation with them about how their fighting affects you both, and that you'd support them finding happiness separately?