I'm kinda getting sick of how Toriko is trying to force something that is only just developing and only focusing on her own feelings instead of seeing how Sorawo is suffering because of this behavior.
Novel volume 8 spoilers:
The reason Toriko acts like that is because literally since the first moment they met, Sorawo's been shamelessly staring at her tits, which Toriko took as an invitation. One of the great uses of unreliable narration in fiction
I don't think it was her tits specifically? I was under the impression that she's just been staring in general, at Toriko's face as well, I can't find the specific moment this was brought up, though. I agree that it was great to get a confirmation of just how unreliable a narrator Sorawo can be. I find that one of the best things in this series is to try and read between the lines and notice what Sorawo tries to conceal or just doesn't even realize, about herself and others too. It's especially fun in the book, where she almost always tries to downplay her emotions, but getting to see expressions in the manga is also great.
It was her whole body, the point is she's been looking at Toriko in a sexual way since the very beginning, she just didn't realize.
you can't spoiler embedded images, so here's a link instead, spoilers for vol 8 https://files.catbox.moe/o4fcug.jpeg
When Toriko said she loved Sorawo for the first time after fighting the cult, she wasn't doing it as a "confession", she thought she was responding to Sorawo's unverbalized but incredibly obvious feelings for her. She had no idea Sorawo was totally oblivious to her own feelings and thus assumed it was mutual and they were a couple. Which is why she was so absolutely gobsmacked by Sorawo's "you're acting like my boyfriend" comment.