Both are painfully socially inept (the female lead even more so than the male) and oblivious to their feelings. The female lead is probably being the most frustrating with how she shuts down every hint of romance with an "as friends" like she's the male main character in a harem Manga. The male lead is actually being incredibly proactive considering his whole anxiety is about popular pretty girls
Well I interpreted it entirely differently. Kusonoki is genuinely unaware of her feelings and is staying inside her comfort zone (which is keisuke). So she has a weird mix of familiarity, friendship and romance to process. It's only now when someone reached out to her (again after getting the "okay" from Keisuke that they can stay friends) that's she's stating to step outside of her bubble. She seems to want to try but is struggling.
Thars very different from Keisuke who actively wants to stay in his bubble and treats Kusonoki as a chore rather than either a chance to grow or just a new friend. He sees them together as a burden and future drama that he wants no part of. Which may be relatable for someone his age but can be frustrating for people past high school (or simply realizing that HS isn't as dramatic as you envision it). He's shown no real attempt to want to cure his "condition" and more cynical people can interpret his condition as inherently sexist to begin with. So it can be a point if contempt to some, not sympathetic nor even entertaining.
The only real connection between the two is they don't seem to realize they may like each other more than friends. But their executions are different. Trying and failing is a lot more understandable than trying to run from all your problems and hurting others in the process.
Even in this chapter half of Keisuke's concerns is of being "exposed" for his middle school past... Even though all 3 characters in question attended the same middle school and somewhat know of each other. What's there here to sympathize with?