Rizzo is extremely upset by how society views her; the boys only view her as a sexual object and the girls view her as a slut. She hates the fact that people look down on her for making one mistake, and she horrible about it, to the point where she's started believing them. The line "But I can feel and I can cry / a fact I'll bet you never knew" is an extremely emotional line, as it shows that Rizzo is deeply affected by how her society views her as heartless, and she won't give them the satisfaction of showing them her emotions. She thinks the worst thing she could do would be to let Sandy, or anyone, get the idea that Rizzo might be upset by what they say about her.

I feel that these lines could be interpreted as being directed to several different characters. I've seen someone interpret it as being directed towards Kenickie, as she hurt him by telling him the baby wasn't his (whether she was lying or not, she did intend to hurt him by saying that). I personally think that this could be directed towards two characters: Sandy and/or her unborn baby. Sandy would be the obvious choice, as Rizzo often picks on her, but this line being attributed to her would add a lot more to their dynamic. It would mean that Rizzo sees herself in Sandy, except that Sandy is more innocent and youthful, and has the coolest boy in school chasing after her like a lost puppy. But while Rizzo makes fun of her and sometimes puts her in uncomfortable situations, she doesn't completely hate her. This line being linked with her baby could mean that worse than being pregnant in High School would be being cruel to her child because s/he/they cost her reputation, and this line means that she would never do something like that.