One of the things we hear all the time from people who have survived abusive relationships of all kinds is that they fear they can't trust themselves. When we explore the situation though, what we actually find is that they could trust themselves, they just either didn't believe themselves or didn't act on it for whatever reason. Either they second-guessed themselves or were convinced by someone else to do so, or they didn't want to accept or believe the reality of the situation... there can be many reasons for this.