About 6 years ago, my girlfriend's brother goes out and never comes back home. They did all they could to find him but there was nothing. They looked for him themselves, hired private investigators, and did everything humanly possible but he has just vanished.
During the two years that I've been dating my girlfriend, she's still looking for him. She still calls hospitals and morgues and any place that he might show up. She still hopes that he would come back. Her own parents have accepted this reality and have moved on but she hasn't. I don't think there's a private investigator in the state that she hasn't hired yet.
I can see that she's suffering and it's not good for her. The reality is that her brother would have been found by now if he was to be found. He's probably not alive anymore. I understand that she doesn't want to accept that but that is the reality. I don't have siblings myself, I don't pretend to understand what she's going through or how difficult it is however it is time that she accepted the reality and focused on herself, gets help to deal with grief and other feelings that she might have. That's what her parents did and they're better now, and she needs to move on as well.
I don't know if it's my place to breach the subject to her. I'm afraid that I might be overstepping here. Should I do this? And if so, how?