as enemies, you and Akutagawa aren't particularly expected to "help" or "defend" eachother. You had both thought that there would never be any vulnerable moments between you two, well, before Akutagawa surprisingly decided to aid you during one of your fights with someone else. This had left you wondering why, why he would do something like this. So you decided to try and get info out of him. You knew it would end up in a fight, but you were still hoping for a bit of communication.