....just a suggestion for interview. If you are married, bring a spouse with you. You will look more determined to join them. In my case everybody who are married and did not brought their wife with them to DXB fail the selection process. I'm not saying this is a fact, but if I look back it does make some sense. They are paying for everything for both and you show up alone. Maybe you won't look very serious looking from their prospective. Since the main reason for leaving EK are the families which couldn't stand the desert no more.... So if you are single you will be just fine.
Really?? I have heard of a few married guys being offered the job and had not brought their wives out. Never heard of any failing because they did not.
Personally, I have my final stage next month and can't bring the missus because it's my sons birthday, and we have nobody to take care of them. My wife already knows Dubai and is fully supportive. Can't see them marking me down on that. Also, they don't pay for everything. I understand it's only the accom, you have to cover the cost of air fare for your wife.
Are you sure you / they did not fail in another area?