As long as you both play the same realm and neither of you go afk for more than a few minutes at a time. If you need more than 5-10 minutes away from the computer, I would strongly advise you to log out until you can be active at the keyboard again.
If you get tested and pass, I think they can flag your account so that you don't get harassed again. My wife and I got tested and another GM later mentioned that he could see we were tested and that he would flag the account as "OK".