As i told you, the Avg cost for 2 bedroom flat (normal) 6000 QR and the full furnished is 7000 QR. So if it shared between two your cost will be not less than 3000 QR Per month.
Otherwise you have to share your ROOM with another person to rech honey budget. which mentioned as bachelor accomedation. It depend on you. and these the prices for city center loaction