You shouldn't have anything to do with your ex.
Sally realizes she left her laptop chargers at her ex-boyfriend's house after she moved out.
Sally wants to charge her laptop.
Sally goes online and orders herself a new laptop charger that will arrive that afternoon.
Sally contacts her ex-boyfriend about the laptop charger and arranges to go to his house to pick it up.
Sally feels proud of herself and keeps healing from her old relationship.
Sally starts having feelings for her ex again and it makes her feel very bad.