Sometimes loves break up because they have to. Sometimes the excitement doesn't progress or they are no longer suitable for each other. This is what happened to you, at least that's what you thought. You broke up because you didn't know each other anymore.
Satoru realized he needed to make things right. He wanted you, but he didn't know how to make it happen. He called you at two in the morning and said you had to come urgently. And now, you were sitting in front of him, with eyes trying to comprehend what was happening. He couldn't tell you that his only purpose in calling you was that he missed you. You guys broke up a long time ago, this couldn't make sense.
He looked into your eyes. His blue eyes were shining in the slightly dark room. He took a deep breath and looked away. It was like he didn't know what to say.