A/N- This something I wrote a while ago, and I've been meaning to update it for ages. Enjoy!!!

There are many things about this universe that Ianto doesn't understand. One of these is a certain Captain Jack, who is currently lying in his bed. However, Ianto is getting better at understanding Jack.

Ianto knows that whenever Jack snaps at him, he is not being spiteful, but simply trying to protect his feelings and/or his life, depending on the situation.

"Tosh, take centre. Owen, take left. Gwen take right, and Ianto stay here."

"Jack!" Proclaimed an outraged Ianto.

"Don't argue with me Ianto." Jack snapped, before running in the opposite direction to take on the leader of a particularly un hostile race of aliens.

……

Ianto knows that whenever Jack kisses him tenderly, he is thinking about how much it will hurt him to lose him.

Jack leaned towards Ianto in his swivel chair, gently taking the young mans hand. He turned in surprise, and smiled when he saw the expression on Jack's face. He leaned forwards, capturing Jack in an embrace. Jack pulled back slightly, placing an oh so soft kiss on Ianto's lips, savouring the feel. Jack leaned his chin on Ianto's shoulder, and whispered three little words into his ear.

"I love you."

Ianto tensed, but then relaxed in his lovers arms. "I love you too", he whispered back.

……

Ianto knows that whenever Jack looks at him over his coffee cup, he is secretly thinking of a way to send the others home without them getting suspicious. Three years and no one has twigged yet.

Ianto entered Jack's office, tray of coffee mugs in hand. He handed one to Jack, fingers lingering on his slightly longer than necessary. As Ianto made to leave, a file fell of Jack's desk. Ianto bent down to pick it up, giving the Captain a full view of his rear. When he stood up, he saw Jack's reflection in the glass surrounding his office, and grinned when he saw him frozen with the mug half way to his lips.

……

Ianto knows that whenever Jack takes his hand, he is reassuring him.

Mrs. Jones came running from the house, a rolling pin in her hand. She ran towards Jack and Ianto, with a fierce look on her face. Jack took Ianto's hand, and squeezed it tightly when he started to shake. Mrs. Jones eventually made it to them, and grabbed them both in a one armed hug.

"Why haven't you brought him home sooner????? Is this why you've been avoiding us???" Mrs. Jones shouted down their ears, making them both jump.

The look on Ianto's face was enough for anyone to see that this was not the reaction he expected.

……

Ianto knows that whenever Jack is nearby, he is safe.