There was 1 (or a few) oneshots with a masochistic girl that falls for a girl who hits her that I just can't find (tried the College tag, but it may have been in Adult Life).
Just thought I'd suggest the tag, as well as ask if anyone knew of any cause I can't remember the name.

You're probably talking about When You Say "No", I Say "Eek".

http://dynasty-scans.com/chapters/when_you_say_no_i_say_eek

Cool, thanks