Was that mention of Christine Chapel supposed to infer ...
... that she & Jim Kirk had been involved at some point?? Hmm, I just have to wonder how Gene Roddenberry and his wife would have felt about that. Yeah, Jim Kirk screwed a lot of women, but I don't know why they had to add her to the mix.
I certainly don't remember it ever being referred to in the original TV series. I just remember Nurse Chapel being in love with Mr. Spock.