I think a lot of these women intuitively seek a masculine mate, but have never had a clear point of reference, role model, or exemplar of healthy manhood in their lives. As a result, when Abdul shows up a couple of dynamics go into effect. First, the woman's education in 'multi-culturalsim' and lack of grounding in traditional western values makes Abdul seem not only an acceptable option, but an opportunity to exercise her western guilt (I think this may have been in play with the Obama mamma). Second, for all their faults and perversions, muslim males have not been feminized and in fact do exude a twisted, distorted version of masculinity which some western women believe will satisfy their longing for a 'strong' male in their lives. What they get instead is a dominant bully.
Interesting analysis, but looking at the pictures of this couple, I think it was more a “teacher boffing the student” dynamic. The Tunisian psycho looks about 15.