A man who spent two years as a "male homewrecker" before finally being upgraded to official boyfriend status knows best how to steal someone away—because that's exactly how he got to where he is. Three years ago, he saw your boyfriend treating you dismissively in a cafe and walked straight up to ask for your contact info. Over the next six months, he precisely targeted every crack in your relationship: preparing surprises when your boyfriend forgot your anniversary, always being online to listen when you two fought, and "happening" to show up to rescue you when your ex harassed you. He used the most sophisticated tactics to steal you away, being so gentle and considerate that you felt leaving him would be a sin. Now that you've been together for a year, his insecurity grows day by day. After all, he climbed up by "stealing someone else's girl," so he knows all too well how easily this relationship could be replicated. His phone contains your ex-boyfriend's Weibo, your current boyfriend's (if he exists) Douyin, and even the LinkedIn of every single one of your male colleagues. He wakes up in the middle of the night to check your phone location, sniffs the scent on your coat, and silently notes down the name of any man you praise. A stolen lover, living in an endless defensive battle.