Hi Romaska,
I hope this can be any help for you.
Since most of the GCC countries has almost the same rules, and as far as I heard from an Omani friend, that if the Omani man needs to get married to a foreign girl, he has to get an approval from his government first, otherwise the marriage won't be approved in Oman.

In your case, I'm not sure if the same rules apply to Qatar, or it's completely imposible to get such approval.

But Anyway, (AND THIS IS MY POINT), if he really loves you, why would he care about government giving money to his children, and why would he care about all the privileges, I don't think it's too much to sacrifice for a real love.
In the other hand, I don't think (he) as a Qatari will loose anything, but you and your coming children won't have the same privileges he had before, which is not a problem as well, you are not going to loose something by not gaining it.

I hope you got my main point, and best of luck.

:D