Even though I think she could try harder to integrate, it’s clear they just want her gone at this point which doesn’t make it any easier. She never even mentions going back, but they constantly jump to that whenever there’s a problem rather than trying to find a solution. They seemed to really embrace her with the wedding and all but either it was for all for show or she’s really worn her welcome. TJ looks so fed up but that’s what he gets for deceiving her honestly.
I think she was a student then, so she would’ve at least had classmates, classes, etc., to do outside of her home. But, she can’t really explore when she can’t read or speak the language well enough to not get lost or make friends.