Her marks are def not rope marks as you can see from the rope indention pictures added. 100% different. I dont know her and have not met her, but it seems from the last couple of posts that they are self harm (and if I were to have guessed I would have said so too). However as they have said... as long as she seems happy, isn't self harming now then all good. We all have histories and a story behind us. Sadly some people's are not from particularly nice situations.
Go forth and have fun I say :-)