I ' m just happy that it 's staying down . I so hope tomorrow is a better day . I have n't been keeping Kat away from Tyler . I know she will get sick , and there is n't much i can do to stop it . I hope it does n't happen , but if it does ( and i ' m pretty sure it will ) , i hope it happens sooner than later .

Give answer the following question using evidence from the above passage: How are Kat and Tyler related ?
They live together