I was wondering what life in Doha is like for single women? - You will never fall short of propositions and I say that in a good way.

Will I be able to make friends quite easily? - Oh hell YES!!! You just need to be choosy about the friends you make, because anyone and everyone you meet will wanna be your friend.

Will there be things for me to do? - Yes

In a nutshell, it's not as bad a place as some people would make it out to be. It grows onto you ;-)