This isn't addressed to those who are single, but to those who have led their partner to believe that they were in a faithful and committed relationship.
As someone who was cheated on in my now former marriage, I can assure you that what one doesn't know can and does hurt them! I became physically ill when my husband's affair started, and it continued for months...I think subconsciously we know something is wrong and the stress affects our bodies. The pain and confusion associated with someone going outside the marriage is unbearable.
Further, when we have ASKED you if you ever thought of being with a guy and you have answered "no", it is all the more hurtful to learn that you actually fantasize about being with a guy. That is the one thing we can't be and shouldn't have to compete with. So many of you have stated how you wish you had a supportive GG...well, many of you do...but how supportive of a husband are you being when you fantasize about being with someone else?
To the single ones out there that are completely unattached, you're free to pursue whatever you want...to the rest, you've already made an obligation and if you can't live up to it, NOW is the time to tell your partner.