Yes exactly. This is so important. Really this is the basis of long term attraction. Seduction really just boils down to this + emotional connection + looks.This. The Jerk vs Nice Guy debate has always been a red herring. It’s a clever way to dance around the far more important looks issue.
Back on topic, “safe” means she can relax and let her guard down because she feels like “You got this.” Even as a guy, you might have that one friend or family member who seems like he can handle anything; it’s sort of like that.