Well gotta say, I didn't like this chapter
1) Why invite blondie if he can't be comfortable around him, because of course he likes Sakura
2) Just tell Sakura you like her already, so you can "stake your claim" so to speak and be done with it.
3) I hate this Manga trope of guys wanting girls to cover up at the beach, it reeks of possessiveness, is like how women are forced to cover up in the middle east because otherwise they would tempt other men, it seems to me quite misogynist, I think you risk making the girl feel ashamed of her looks.
Still, thanks for the chapter.