Well i don't think Obito was "strange" with how he felt about women. I just don't see the same type of behavior coming from Sasuke. I suspect that Sasuke can't be compared to anyone else in the manga since i haven't noticed anyone else with that kind of behavior. I think kishi is being politically correct by not giving too much detail about Sasukes "life style".
he hasnt had a rin flashback since he woke up. obito is naruto. sasuke is kakashi, sakura is rin. naruto likes sakura, sakura likes sasuke, sasuke doesnt like anyone. just like obi kaka rin.