<human>: A- my boyfriend, 27
B- boyfriend's brother, 21
C- brother's on/off fwb, 20

And I am 19 f. B and C have had a thing going on for a while. A and C are fairly close friends and she has been confiding in him lately. C is troubled to say the least; I won't go into detail, but it seems like all the bad things that could possibly happen have happened to her.

So A, B, C, and I all work at the same place. Last night C and I were talking in the breakroom and she told me that she has herpes. I asked if she'd told everyone she'd been with; she said she'd only been with one guy recently and that was a few months ago. I don't know if she was referring to B or not, because I didn't ask (stupid, I know). I don't think she even knows I know about her and B.

C told me not to tell anyone. But I definitely feel like B has the right to know. I don't talk to him much so I feel like it might be better to have A tell him; the thing is, I feel like it would be a bit inappropriate to tell him that his brother may have been exposed to herpes via text message. I might see A this afternoon during shift change when he's leaving work and I'm about to come in. I don't really know if I'll have a chance to tell him in private. I'll see him tomorrow morning for work as well and then again when we hang out tomorrow night. 

So should I text A, find a way to tell him at work, or wait until tomorrow when we'll have time alone? Or maybe I could just ask C if she's told B, but I'm afraid she'll be angry at A for telling me about their thing.

Could you distill the essence of the text into 1-3 sentences?
<bot>: My bf's brother may have been exposed to herpes. Trying to figure out the most appropriate way to bring this up to my bf (if he doesn't already know) so he can tell his brother.****