`` i 'm sorry , son , '' his father said , and for a heart-sinking second , seth thought he was saying he was sorry because he was n't going to let seth leave but - `` i 'm sorry you felt you could n't tell us , '' his father continued , looking down at his phone again , at the picture of seth and gudmund , just there together , but in a way serious and real and undeniable to anyone who might look .