Someone’s broken promises have been getting on your nerves, and today they might tip you over the edge. It’s fine for you to express your frustration with this person. In fact, it’s healthy, but just be careful not to burn any bridges. Just let them know that your time is too valuable for them to waste with flaky behavior. You’re taking them seriously, and they need to take you seriously too. Relationships require tricky conversations every now and again. This will be one of those times.