Friend, may I ask you one thing? Did you ask you self first “What I am looking from the share? “
The answer should be one of the following:
1- Looking for money saving!!
If you are looking for money saving that you can simply find if you share your flat with a man, and it will be good to have your partner with a Muslim man.
2- Looking for having fun!!
I think what you are looking for that, it will be against the:
A) Religion, it is clearly mentioned in Islam that “evil will be the third if unmarried man and woman will be together”.
B) Low, you are living in eastern Muslim country that type of relations not allowed at all.
C) Human nature, you cannot say that no sex relation, or thinking in a sexy way, will even happen for one time, which might drive you to follow human nature to have a sex relation with your lady partner.
Try to ask someone of your friends, who may have experience with the country culture, and people traditions in Qatar , he may help you to give you advice about such case.
Finally, think more than hundred times about what you are thinking …..!!!