What's the most surprising way you've seen someone diffuse or dominate a tense situation with unexpected strength or wit?

How do I go about a mental health conversation with my boyfriend? I need time for myself but he wont do breaks or wait for me if we break up. I need to get better by on my own but I know it will get worse if I lose him. What do I do?
How can you use lessons from betrayal to ensure you don't get hurt again in future business ventures?