Diana is cute and good intentioned, but I can't root for someone that after all this time still can't say her crushes name right nor makes any attempt to try. Like, Lapis makes a lot of effort to get to know Natori, even if in the beginning only to manipulate her. Diana has really only been receiving. Even this right here is an example of her not really interested in knowing what Natori wants, but more about competing with the persons she views as her rival. Realistically, she's kind of a shitty suitor.