Lara-09
i think this guy is serious about you, and what he did shows that he love you and he care about you.
A lot of people here in doha don't go for marriage because of two reasons, 1) they are not serious ,2) they know already the results .

his trials to let you meet his family and accept you in his environment is a clear prove that he is really serious about the relationship.
then the marriage which considered a huge step even rational.

he should expect tat what you are facing now is coming sooner or later.

so he should choose one of two options before
1- stopping the relationship
2- or continue with awareness to all the troubles that he will face.
the problem is not in him , the problem is in his community and how they look to some nationalities.
neglecting the good people that could exist in any nationality.
that cause a pressure on him by his mother.

he is 24 that means he is young and he was rational in his marriage , but for now you have also 2 solutions :)
1-accepting what he is telling and divorce him and continue your life, "no one will die because of love"
only matter of time you will forget him and you will remember the good memories with him.

or 2- since he is working here,and he is away from his mother who caused the problem, and you are already husband and wife(it is really ugly to break your family), you can agree with him to continue your life together, but SECRETLY .
and slowly slowly he can convince his family again.

at the end you married him, not his mother.it is your life both.

sorry for this comment which not structured well, but i wrote it in a hurry.

and after couple of years no one knows what could happen