1st of all if your muslim i think you might wanna marry a muslim!!! both because if u dont its haram, and also because you will have problems with culture clashes, how will your children be raised etc.

if the guy is muslim but foreign there still can be culture clashes which can ruin your marriage!!!
also think of your family, in our society it is not accepted to marry foreigners so we will bring shame to our parents who have raised us with all their heart!!
you will isolate your self from your society and family!
and if anything ever goes wrong u dont hve any1 to turn to.

im a 19 yr old muslim girl sayin this btw!
so im not some old granmother or granfather who might be very closed minded!!!

i suggest u wait!!!
if your far in your 20s and you still feel you cant be happy with a qatari, and u hve found a foreigner who for years u get along very well with, then maybe u could try and talk to your family very seriously, and they would listen to u better as they see your now a mature adult!!

i think if the law does allow men to marry foeigners but not women tht is unfair and unislamic!

good luck sweety! just pray to god and he will show you the way!!!