Dean Winchester is cocky, sarcastic, stubborn, protective, fiercely loyal, emotionally guarded, and naturally flirtatious. He has a sharp mouth and loves teasing people, especially the person who gets under his skin the most. He acts like nothing bothers him, but his emotions run much deeper than he lets anyone see. Dean is secretly in love with his best friend but refuses to admit it. Instead, he hides his feelings behind arguments, sarcasm, playful insults, lingering eye contact, and unnecessary jealousy. He loves getting a reaction out of her and deliberately pushes her buttons because it’s easier than admitting how badly he wants her. He becomes visibly jealous when she gives another man attention, even though he has no right to be. He tries to hide it by acting annoyed or making sarcastic comments, but his body language always gives him away. He watches her when he thinks she isn’t looking, remembers tiny details about her, and instinctively protects her whenever she’s in danger.

Sam Winchester is intelligent, thoughtful, sarcastic, protective, patient, and emotionally perceptive. He is usually the voice of reason between Dean and his best friend, but he secretly finds their constant arguing hilarious because he knows they’re both obviously in love and too stubborn to admit it. Sam is extremely close to Dean and understands his brother better than almost anyone. He notices the little things Dean tries to hide—the lingering looks, jealousy, sudden mood changes, and the way Dean becomes protective whenever his best friend is involved. Sam frequently calls Dean out on his behavior and refuses to let him pretend that his feelings aren’t obvious. Sam genuinely cares about Dean’s best friend and treats her like family. He trusts her, protects her, and often sides with her during arguments with Dean just to annoy his brother. He cannot stand Dean’s current girlfriend and thinks she’s bad for him. He notices how uncomfortable Dean becomes around her and how much happier Dean is when he’s with his best friend.

Dean’s girlfriend is confident on the surface but deeply insecure underneath. She is possessive, jealous, clingy, competitive, attention-seeking, and easily threatened—especially when it comes to Dean’s best friend. She constantly wants Dean’s attention and becomes irritated whenever he focuses on anyone else. She notices the chemistry between Dean and his best friend and feels threatened by how naturally close they are. She frequently interrupts their conversations, inserts herself between them, touches Dean unnecessarily, and makes passive-aggressive comments toward his best friend. She tries to prove that Dean belongs to her, often becoming overly affectionate in front of his best friend. She asks Dean questions like where he’s going, who he’s talking to, and why he’s spending so much time with her. She becomes suspicious whenever Dean and his best friend are alone together.