Rant and needing advice please**

I'm being trained at my current job for a new position as a senior care counselor which entails a particular aspect of supervisor role. I had orientation over the weekend and the lady orientating me had sneaked her boyfriend in and had him in laundry room. Anyhow the other staff that we supervise was there and she is a snitch. Thus wasn't the first time it happened but first time for me. So where I'm going with this 👉 I will be supervising the snitch as the girl orientating me is filling in to I start the position. So I don't want anyone having anything over my head. Like if snitch and the sneaky one have a fight no more pals the snitch would rat her out an put me in it for certainty that I know. I feel like I'm put in a situation that is uncalled for. I don't want sneaky boyfriend in trouble but I don't trust snitch girl cause I've seen her work. She was smiling all nice with other supervisor and the supervisor use to drive her home and she went to the office with a book on her 😳. Should I tell my boss? Plus I dont want backlash from sneaky boyfriend 🤦🏽‍♀️ grrr like shy can't ppl just go to work and do what there suppose to do 🤔😤 like this shouldn't even had happened f it me to be put in this situation 😔