It was quite an episode yesterday... absolutely amazing Sim n Ru chemistry and ofcourse the shocker by Suhana.
My guess is that Suhana is married to someone else who either died in the accident or left her after it (remember the other girls in the hostel talking about a guy coming to leave suhana) and she lost her memory in the accident. When she ragained conciousness the only thing she saw was a snap (of Ru) and her mangalsutra. so she comes to the conclusion that she is married to Ru.
obviously what might now happen is that SC or Inder somehow come to know about Suhana and take advantage of this situation to seperate Ru and Sim. What do you guys think???