Onoe is really shy about telling his feelings out loud. Kaburagi I think is the type that doesn't have much emotional intelligence and avoids analysing his own feelings.. so I guess he doesn't reflect about "what do I like about my partner" very often.. but he clearly fell for Onoe's honestly, he also likes how he is brave, loyal, earnest, kind-hearted, etc.
I totally agree. They are actually very much smitten and their relationship is maybe one of the healthiest I've ever seen. The fact they couldn't come up right away with something they love about their partner just proves it! (As for Onoe I suppose it's the same thing about Kabu. He fell in love with that "pest" part of him, because Kabu is actually very sensitive, but he just gives off a "I don't care vibe")
And I seriously loved that "sigh" Kabu did before thinking about what he likes about Onoe! He seemed kind of frustrated, but in a exasperated way? Like "Why do I have to do it, don't ask me this stuff now gosh" lol
Poor Masayan finally has some back story of his own (๑•ㅂ•)و✧ Funny how he always got caught between Onoe and Kaburagi though he wants nothing to do with it lol.
Onoe and Kaburagi look the same in their CV photos, just with different hair colors XD
They can't even list more than one thing they like from their partners. Either they really don't know, or they're just shy. Btw, who's this Haruto.. From sensei's different manga?