Shingun thought that Jay was in a gang - a part of mercifuls. After seeing him in a cop costume multiple times and after many incidents, evidence pointed to the fact that he may or may not be something else. Shingun is mad because he wants to know who Jay really is. Is he a cop? is he FBI? Is he a gangster? A con artist?
Shingun feels like jay has been lying to him and is upset and just wants to know the truth, especially after he sided with him multiple times.
Yall im confused. What did shingun believe jake was? Like theres no way he believed he wasnt apart of a gang like???