We're going to work with three premises here. 1, all successful relationships take work and sacrifice 2, all relationships have problems 3, any relationship worth having is worth working at How and where do you draw the line for what's worth working on and getting over, and what you can't get past? Say you both want to get married, but one of you wants kids and the other doesn't. It's not likely that there will be a compromise that meets both of your needs, though time will often change it (most women seem to not want kids until they see their 30s coming up, then they become desperate for babies). What if your SO cheats on you for no real reason? I think that implies a critical lack of respect and morals, and pretty much ends it all right there. But often people make big mistakes and learn from them, and never make them again. Any other examples that come to mind? How about your thinking in general? Basically, I want to know what kind of problems you think are worth working on, and how you determine that for yourself.