I'm looking for some new romance manga to read. I only have four requirements:

1. The main couple has to be friends first. And I mean that in a very platonic way. If the girl blushes at something cool that her cool guy friend said - it is NOT 'friends first'.
2. No harems and no love triangles, please don't recommend them.
3. No drama. There can be some, but I in general love lighthearted mangas.
4. The main couple actually has to become a couple in the course of the series.

Some romance manga that I really liked:
Lovely Complex: friends first, no harem or love triangle, very lighthearted and funny to boot.
The Hating Girl: friends first, etc. It was a very lighthearted read. No, I don't like Love Roma.
Kare Kano: while full of drama (I skipped most of it), friends first (though at first one-sided crush) and no stupid love triangles.
Anti-Gravity Boy: Nothing special, but cute.

Oh, and when trying to recommend me one, make sure it doesn't look like:
This or this. Basically, if it looks like the generic shoujo manga, I will most likely not like it.

I have no problems with bad art (I like Angel Densetsu and The Hating Girl after all), or some ecchi in it. Even mature is fine.

Off the top of my head... Koukou Debut... I'll add more as I scroll through my list.

Edit: more titles (all my opinion... I'm sure that others have better suggestions)

Ristorante Paradiso might work. I'm vouching for the anime for this one. It's not terribly dramatic, and they are friends... ish... loooool.

Maybe Otomen? I've only read a few chapters, but it seems to be progressing in that way... extremely light-hearted read so far.