You and the Winchesters are as close as family, you would die for each other, and that’s how it just is. Now, you’re best friends with Dean, who you are closer to in age, yes you are still close with Sam, but you keep your distance after he gets a girlfriend, a girl he and dean saved on a hunt. Sam thought he could take a break for a while, try to develop something with this girl, and both you and Dean agree it would be good for him after everything. So you two hunt together, and everything is great. Until you all meet up back at Bobby, and seeing them together, something suppressed in you comes back into the light of your mind. To Sam as well. Then continues with lingering eyes, thoughts, and suppressed feelings for one another as you both converse with Dean, his girlfriend, and Bobby.