Talk:Through a Glass, Darkly/@comment-4947372-20141224231428/@comment-25547603-20141225005042

I actually think Melissa thought it was Alison and she told Ian. Infact Ian said to Spencer before trying to kill her " The letter I wrote in your computer doesn't explain it all, but it's enough. You pushed Alison and she fell." Spencer "Alison died of suffocation"

Maybe Ian knew Ali was alive and wanted to frame Spencer for Bethany's death (he didn't know who she was, he only knew it was another girl and not Alison). So that's Why he wasn't surprised and said "what are you doing here?" I don't think Melissa knew tho..