1. He tells you he “needs space.”
This is never a good sign. Ideally, if you’re in a relationship, it’s because you two came to a mutual understanding that you’re attracted to one another and love spending time together. A boyfriend who “needs space” is an unhappy boyfriend and, furthermore, will not continue being your boyfriend for much longer.
2. You find a portentous event in your Google calendar.
Here’s a pretty good sign you’re about to be broken up with: you wake up, sift through your emails, and see that your boyfriend has invited you to join a Google event, today at 4:30, entitled “talk.” You turn over in bed to inquire about the nature of this meeting, and he’s gone—all that’s left is the imprint of his body.