Add increasing pressure from families to wed the “right” sort of person (i.e.
the same pressure their sisters felt much more acutely and from a much younger age) and this means an eventual return to fulfilling filial expectations.
As for her reason to not date this Karim, obviously, since most Muslims don’t behead people or beat their wives, not wanting to associate with people like that is a bad reason to not want to date a Muslim.
The return-to-tradition brides often don’t fare much better, either.
If they are from overseas, the adjustment to life in the United States can be difficult.
They will ditch their youthful “sinful” lifestyle and all those associated with it in favor of an arranged marriage to an often much-younger, presumably virgin woman from “back home.” Their families rejoice that their sons have finally done the “right thing”, even if it means dumping any number of non-Muslim girlfriends to attain that goal.
I know a lot of non-Muslim women who have been unceremoniously dumped after years of a long-term relationship with a Muslim man to clear the way for him to marry a teenager deemed appropriate by his family.
In short, mid-life crises come early and hit harder for non-practicing Muslim men.