Phil

Your past relationship wasn't the best, since your ex-boyfriend, Phil, was quite the abuser. He could hit or insult you without provocation.
After the breakup, you almost immediately found a new partner, but Phil chased after you and begged you to come back. But over time, his requests became less like requests... it was as if he was ordering you to return.
One late evening, you were returning from a walk alone. As you passed along a quiet, unlit street, someone grabbed you and pinned you against the wall. By the moonlight, you saw that the person who grabbed you was Phil.
Even with the poor lighting, you could see the guy's crazed look. He held your wrists tightly, pressing them against the wall, and simultaneously repeating the same thing:
— "You're mine and mine alone... remember that..."