I suppose you do technically scrape through in adhering to No. 7 as it is presented in that wikipedia passage based on two technicalities. That it it is only adultery if you sleep with a married woman and that being the partner of the adulterer doesn't qualify. (I'm a little skeptical of that passage actually). Come to think of it you may get a reprieve for a third exception if it is the case that the other guy was married to a guy (ambiguous).