"Just as friends?" Mike suggested. (7.73)
Does "just friends" mean the same to Mike as it does to Bella? How can Bella’s friendship with Mike be compared to her friendship with Jacob?
"I believe that…we have a date," [Jacob] said, his tone thick with implications. (7.94)
Jacob makes no secret of his feelings for Bella.
This was friendship. And Jacob felt very warm… Well, it was friendship for me. (7.190)
Bella seems to know that the physical intimacy between her and Jacob might me "normally" considered more than friendship, so she feels the need to defend her stance as it being just platonic.