There is a guy in my office who admitted to me that during his recent holiday he cheated on his GF having unprotected sex with a number of different people. He is worried he caught something but has continued having sex with his GF since his return but using condoms, which they don't usually use. I explained to him how risky that is and he must get tested ASAP and he must dump his GF and tell her to get tested. I'm disgusted with him and his attitude to his GF. I am concerned for this woman's health. He's told me he's going to get tested and is going to break up with her but he's such a liar that I'm just not sure he will. So I suppose I'm asking if I can locate her on FB should I message her?