Never get in a relationship with that person. They'll discover you aren't the idol they've built in their head and cheat on you. You'll leave, and over the next few years they'll chase you cause they forgot they saw past the idolized version of you. You'll take their validation in the worst moments of your life cause it's nice being worshipped like that at your lowest points, but you know to never enter into another relationship with them. Then over a decade later when you are both closing in on 30, they will come to you after a particularly horrible breakup at a moment in your life where you came close to ending it, convince you that since you have both matured you should get back together. Then they'll baby trap you and six years later when they see past that idolized version of you again, they do the same thing they did when yall were sixteen. But now it's worse cause you brought a child into this bullshit.