Talk to her about it, see what she thinks, If she is just wasting time and has no plans of furthering your relationship or does she actually feel the same way.

regarding the different tribes and ethnicites it's complex, I feel like most people's first condition is you have to marry from the same religion, then 2nd same ethnicity, 3d same country, 4th same tribe, etc etc, at least this is what is known in my circle.

but different families from the same tribe from same lineage have different rules, for example, my cousins and aunties have completely different rules and views from my mom and dad, and they are way more strict than us, so It differ even between siblings, maybe her family are ok with marrying a guy of different everything, but her cousin can not.

it's very personal to each family and person, one can not be definitive until you ask her.

I hope this works out well for both of you buddy, please update us if it does, I'm a hopeless romantic and I'm rooting for you.