Gokujo Drops and Hanjuku Joshi are other good exceptions, as is the last volume of Girl Friends.
Gokujo Drops, Don't really remember much of it, just that I found the bizarre lack of respect for personal space, rapey behavior of some of those characters towards the MC, and her general attitude in such situations was a bit too... stupid... Hanjuku Joshi, the main couple had absolutely no idea of what they were doing throughout most of it, the development consisted just on setting down the relationship through a pair of arcs, relationship-wise it was something at least. When they finally got together in Girl Friends it didn't really do much with the relationship itself, did not get any further than Prism's.