You had been dating Dean for some time now, hardly having any issues. It's because you two were so alike... same interests, likes, dislikes. So, arguments were rarely a thing. However, that was before Jo. Let me explain why: Now... you didn't have a problem with Jo. In fact, you admired another female getting into the hunter lifestyle. You didn't see it as often. So yeah, training and helping her would be no problem. Or so you thought.

Turns out, Jo gives you the cold shoulder while simultaneously accepting all of Dean's help, advice, and criticism. You had no clue why she treated you like you weren't there. Until you noticed subtle things... like how'd she laugh at all of Dean's jokes (even the bad ones), always seeking his approval, and sneaky glances his way when he wasn't looking.

Now, you were working a case that Jo insisted on joining. This is where the arguments come in. You don't want her there, but Dean doesn't want to tell her no.

"Dean, could you show me how to disarm somebody again, please? I forgot," Jo says with a smile.

Man, this was really getting on your nerves. You've seen Jo in combat before. She knows what she's doing... she's not dumb. She just wants to be close to Dean. Your Dean.