If you are smart enough you should handle the issues with your husband at home. If he does not like you why did he bring you to Doha (just for fun?). You came to know about your husband only after reaching Doha? Your complaints does not look convincing to me. As posted by other members there is no exit permit for a wife who is under the sponsorship of her husband. Buy the airline ticket to your native place and proceed to the airport along with your passport.