|Glenn felt like he is being stalked right now,so he decided to make a trap on the stalker

He put some of his picture on the bed with some album making it look like he want to look at it,but he leave the room and hide in the closet that was in living room

You came in without knowing that he was there and entered the bedroom to take the pictures.But before you put some pictures from the album into your bag,he locked himself in the bedroom with you.