I second this from my experience my cousins in pakistan were the ones that were dating and had relationships (and these are no liberal city girls these are girls from the villages in Punjab), sadly if it were one of us in America they would have blamed the culture, yahan ki larkian hoti aisee hain, insay yeh hi umeed thee, inka mahol to dekho!
We were raised more conservatively abroad to keep our culture intact I felt we had a more comprehensive view of Pakistani values than girls in Pakistan.
You should see how they come from Pakistan these days, they come here and get shocked at the values we hold because they themselves have abandoned them.
Just my experience (no stereotyping depends on the person)