Your problem following.
If you have as fully married less points than your ITA you might end up in sponsorship, because:
If you add your spouse as accompanying before AOR, you will get less points. If you do that after AOR you will get most likely rejected because of the misinterpretation.
Unfortunately your case is not the same as those that get married after AOR.
In your case it would be taken as try to get advantage of the system. that is all