““If you’ve made it clear what your real bottom lines are and your partner’s violated them anyway, then by definition you will not be happy if you stay and you will only be happy if you leave. Quick take: The bottom line is the end of the line. You have to be fair, though, in implementing this guideline. You can’t just walk around knowing what your limits are in your own mind, while your partner simply doesn’t have a clue, and then if he crosses the line that was invisible to him, you end the relationship. If you know what your bottom lines are, you must tell your partner. This is particularly important in an iffy relationship in which things are so volatile and up in the air.””