He's seeming like a jerk, right?
That's kinda presumptuous, right?
I responded wrongly as "Mi iras al sxian domon,...".
I don't quite understand why the "sxia domo" is correct, aren't we supposed to add -n to those words?
(guessing) the verb "to go" isn't transitive, thus "her house" is an INdirect object not a direct object, and thus, no -n
some time after I wrote that message I figured out why: like you said, "ŝian domon" is not a direct object as it comes after a word that shows direction: "al".