Maybe Random Walk too.

♪MONSTARR~ will eat all your cookies and steal your bishies~♪ Φ_Φ

And I just remarathoned 7 volumes of Moe Kare!!.... >_>; Um, I really don't like this thread. (I wonder why that series felt longer first time around?)

...I should recommend some other series...

goes through lists

This series is kind of like that, but it has the same feeling of what you're looking for.

Kyou, Koi wo Hajimemasu

Also try:

Mel Kano - it's a seinen, but I loved it. & take it from me, I'm a huge shoujo fanatic

Doesn't Parfait Tic! also fit the bill...? Been a (long) while since I read it, so I don't remember.

Oooh, I remembered another! Same author of Kyou, Koi wo Hajimemasu

Rhapsody in Heaven

& also...

Aisuru Hito

I am so disorganized. <3

but idc

A Delicious Relationship – A newly scanlated series that has quite bad art but a really good story line, check it out. Both characters date other people before they get together.