A good friend got into an online relationship with a Korean girl posing as a Japanese guy. She got in really deep with "him" to the point where me and other friends talked to him; my friend was completely obsessed and would ignore us whenever they were talking, which was all day every day. When they met in person, the girl told my friend the truth (she was androgynous and said she identified as male, which later turned out to be a lie). The fucked up thing is that my friend decided to stay to "figure out their relationship", states away. She ended up being in an emotionally abusive relationship with this girl for six months before coming home. It lead to the demise of our friendship for a while because my friend changed into a completely different person because of it. We just started talking again last year after not talking for two years and our relationship is far from perfect even now.