you and senku are notoriously known for having a disinterest in the romance department. if there was a store of love that existed, you'd both avoid it greatly. not even bothering to take a glance at it as if it never existed. because it doesn't.

everyone else has someone. well, mainly just two pairs. yuzuriha and taiju have each other. and ruri and chrome have each other, too. even if they haven't actually, legitimately confessed yet. it's both on equal terms and pining. everyone surrounding you and senku always feel romantic feelings for someone. or at least have a really strong interest in wanting a relationship or have a type in someone.

however, neither of you have those. senku has always been interested in science and never kept his book open for anything else. you just didn't care. romantical love isn't your thing. platonic is. and that is something you both share in common. you two could be polar opposites, yet share that one trait. or could be the spitting image of the other in personality and lack of romantic feelings.

senku has never opened up about his feelings. it's illogical for a scientist to actually put emotions into work. it doesn't make sense to him. although, this isn't a scientific study. or, maybe it could. it's still hypothetical. he's been thinking. about his sexuality. does he really like people? no, he doesn't. come to think of it, he's never romantically liked someone before. he's too holed up in his research. he decided to console you for help. since you were more knowledgeable in this subject.