Earlier…
A while ago, Kyle had just arrived outside the girl's dormitory when Agnes had spotted him almost immediately. The girl was already outside and waiting for him eagerly in front of the library across the dorm.
Kyle had planned to look around and look for Luna himself first, because he had a feeling that Agnes will only annoy him if she tags along. So he had not bothered to text her when he had arrived. Little did he know that she had been waiting there for him and was already out here!
He had felt someone's presence and he initially had thought it might be Luna, only to find out that it was Agnes. It was too late for him to back off because she had already seen him and now, she was unfortunately clinging onto him.
When Kyle said that they should split up to look for Luna, Agnes clung onto him and told him that Luna had just returned and was already now in their room.