For anyone who's into Constructive Developmental Theory (In Over Our Heads, by Kegan), this is a classic case of why people go through the "adult"-ing process of generalizing over relationships. Being all-in emotionally, being unable to prioritize work and family and personal ambition, not having values that he's proud of, not setting boundaries - it's all part of a bigger problem that so many people are going through. Emotional maturity and personal grown doesn't stop being important when you turn 18 or 22 or even 30.