Is School Rumble a 4-panel comic? The shorts at the beginning appear to reflect that style. Well, as far as relationships go nothing changes in this episode. It's okay because funny stuff happens. Like Eri walking in on Harima practicing his katas in the nude. It was so random I had to make a clip!
Harima's in a Pinch!
Also available on Amazon: School Rumble: The Complete Series (Seasons 1, 2 and OVA)