For the past three years, I have been living in the freshman housing at my college and serving as an unofficial mentor to the new freshmen. "Alan" was my mentee last year, and "Craig" is one of them now. "Bailey" is an older girl from the hall next to ours.

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All year, Craig has been dating Bailey--or so I thought. It turns out Bailey and Alan have been in a relationship for two years, and Bailey is cheating on him with Craig. 

Because Alan is older and lives off-campus, Bailey has just been cheating openly (to the point I thought they were dating) since my freshmen don't know where Alan lives, and are somewhat intimidated by Bailey. Bailey told a mutual friend that Alan has no idea about her and Craig.

I am very upset that, as the "adult" of the freshman housing, I have been apparently approving of what they are doing for the whole year. In addition, I feel like I have a responsibility to Alan, both as a person (I would want to know in his situation) and because he was my mentee. I also will be moving out very soon, and don't care if I burn any bridges.

Craig has decided that he is too in love with Bailey to break it off, and Bailey has stated that she is doing nothing wrong. 

I want to talk to Alan, since no one else knows him, and just tell him that he and Bailey need to have a serious talk about her inappropriate relationship with Craig, but otherwise leave it to them--I don't want to get involved in their relationship. 

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Do you guys think it would be wrong of me to let him know that "something inappropriate" is going on without gossiping/getting too involved? If you were in that situation, especially considering how actively disrespectful Bailey is being, would you want to know?
user
I have been told recently that my mentees are in a cheating relationship, do you think it would be wrong of me to act? Should I tell my mentees
assistant
For the past three years, I have been living in the freshman housing at my college and serving as an unofficial mentor to the new freshmen. "Alan" was my mentee last year, and "Craig" is one of them now. "Bailey" is an older girl from the hall next to ours.

---

All year, Craig has been dating Bailey--or so I thought. It turns out Bailey and Alan have been in a relationship for two years, and Bailey is cheating on him with Craig. 

Because Alan is older and lives off-campus, Bailey has just been cheating openly (to the point I thought they were dating) since my freshmen don't know where Alan lives, and are somewhat intimidated by Bailey. Bailey told a mutual friend that Alan has no idea about her and Craig.

I am very upset that, as the "adult" of the freshman housing, I have been apparently approving of what they are doing for the whole year. In addition, I feel like I have a responsibility to Alan, both as a person (I would want to know in his situation) and because he was my mentee. I also will be moving out very soon, and don't care if I burn any bridges.

Craig has decided that he is too in love with Bailey to break it off, and Bailey has stated that she is doing nothing wrong. 

I want to talk to Alan, since no one else knows him, and just tell him that he and Bailey need to have a serious talk about her inappropriate relationship with Craig, but otherwise leave it to them--I don't want to get involved in their relationship. 

---
Do you guys think it would be wrong of me to let him know that "something inappropriate" is going on without gossiping/getting too involved? If you were in that situation, especially considering how actively disrespectful Bailey is being, would you want to know?
user
Mentee is cheating on older male with younger female, and I want to tell him but don't want to get involved.
assistant