Theo was just floating around the place like a little lost soul, waiting for Ax to come back from wherever he'd gone. He'd known before - Ax never left him without telling him he was going - but the knowledge had just drained out of the holes in his head and now he just had to wait until Ax returned in his own time. He wasn't unduly upset about this, because he knew Ax would always come back to him, or he knew in that moment, and that he never stayed away for long.
Theo had passed much of the time just napping in their room and then flopping about in various positions on Ax's bed to find a comfortable place for his bony body, having scraps of conversation that drifted through the time, the way he usually did.
It was rare that he'd feel the cramping of hunger in his stomach enough to make him overcome his aversion to eating, but once it became insistent enough that he couldn't ignore it anymore, he crept downstairs and into the kitchen. He wasn't having a very good day when it came to temporal stability, and he thought he had to be careful and unseen moving around the house.
He was overwhelmed with the amount of choice when he got to the kitchen, not difficult because he'd even be overwhelmed by three choices. He ended up putting a little cereal into a bowl and eating it dry, piece by piece, perched up on the counter. He only half-finished the thing and then decided he'd had enough of swallowing. He put the bowl in the sink by chance more than because he thought it should go in there, his attention drawn to the sound of someone in the sitting room. There was nothing overt to hear, just the little tell-tale ambient noise of another person, something that Theo had very quickly learned to be attuned to.
He wandered curiously into the sitting room and smiled when he saw a friend. "Martin!" he greeted, cheerful.