What's types of behavior differences exist between an unhealthy ISFJ and an unhealthy ISFP? I see a lot of the ISFJ tendencies listed in the "What does an unhealthy ISFJ look like" thread in my b/f when he's stressed, angry, anxious, etc. But he tests as an ISFP! And he shows a lot of ISFP tendencies in his daily, non-relationship related life. So, I don't know how to nail it down! I'd show much and for anyone that can help! Thanks!