It’s upsetting when a friend told a lie but in this case, if we look at the big picture, it’s understandable. She didn’t want to admit she went on TLR, even to you, her friend, because she wanted to protect her privacy and didn’t want to be recognized by anyone close to her: family, friends, and most especially, by the rat himself!
As a victim of abuse, she feels ashamed and doesn’t have the strength to stand up for herself. Maybe she felt judged by you or other friends in the past? I’m not saying you did or they did, because I don’t know, but there were posts here that were quite harsh. It’s her right to want to remain anonymous and to not be recognized, even by the people close to her who love her and want to help.
I don’t blame her either if she has more than one account. Same reason: She doesn’t want to be found out. Imagine how angry the rat would be if he knew she came here and talked about him. That’s her prerogative and she tries to protect herself the best she can.