If it was easier to read his human features, at the question Senku didn't let go of his hand, nor did he back away from Gen, but he did glance away somewhat. This meant it was feelings related, and he had a hard time expressing them. His ears twitched as though they didn't know how to react.

He huffed lightly. "It was..." He looked like he was having a hard time getting it out.

"It was brought to my attention that I..." He pressed his lips together. "Just because it took me so long to process, I shouldn't just let the opportunity slip by. Someone told me that if you confessed to me, which you did, and you didn't move on, which I don't think you did, that you might be waiting for me...to figure things out, or to answer you or something like that so it's-" He was blushing darkly.

"It's an answer. But uh, you don't have to accept. Two years is unreasonably long."