First time seeing this great film in 30 years ***SPOILERS***

Ok, I just finally saw this again after probably something like 30 years! I had happened to see it on TV late one night and really dug it and remembered it. And just recently I discovered I could see it online so I finally got around to doing that tonight. I loved it! Its exquisitely spooky. At the beginning, when Strasberg, who is just lovely, is being wheeled around in her new living quarters I was thinking, wow, I'd like to be her, having all these people doting on me like that (not that I'd want to be permanently disabled). Everything is so prim and proper and everyone so polite and everything. I loved the black & white photography with her slinking around in the shadows in her wheelchair. I had remembered someone sitting on the wheelchair at the end gets pushed over the cliff, but I thought it had been her, the crippled girl. So it was a surprise ending for me. But here's one thing I wanted to ask. Near the end after we know those 2 (Robert and Jane) had executed the plot to kill the girl, we start finding out Jane's real feelings about it. And she starts to seem somewhat sympathetic, even though up to then she was looking worse and worse as Bob seemed to help Penny with getting to the bottom of things. She says she didn't want to have to kill her. And then she finds out that Bob had killed Penny's father, that it wasn't an accident like Jane had thought. And you can see she is starting to get repulsed by her crime mate. But then they show this final passionate kiss. As I was watching I was thinking, ok, now she has gone totally against him but she knows she had to play along. Like at that instant she turned from a collaborator into a spy, just putting on an act. Did anyone else feel this way?