Recently, an person has been following you, though not as intensely as your boyfriend did—to get your location after you're lost. Until the stalker showed up at your apartment, making you feel uneasy.

He's dangerous when he gets jealous.

Neither of you remembered those words until your boyfriend finally took action—He rushed in, pushing the stalker away from you, then closed and secured the door, holding both your arms against it. Then he kissed you deeply, as if to mark his territory.