Romance anime:

Nodame cantabile - a lot like honey n clover
Rurouni Kenshin - Reminiscence
Kimi Ga Nozomu Eien - like elfen lied only twisted
Bakumatsu Kikansetsu Irohan...(i forgot name) Like RK reminiscence. Romance almost not available.
Air TV/movie
Vision of Escaflowne - deep romance in here
Banner of the stars and its siblings (everything in it in order) (a lot like escaflowne) - scifi
Kareshi Kanojo no Jijou - (how school rumble originated) but direct love story
Hoshi no Koe - long distance relationship
chobits
midori no hibi
ai yori aoshi n S2 of it
whisper of the heart
Tsubasa Reservoir Chronicle

I think thats about it.
If you have PS1/2, I suggest you find Lunar The Silver Star Story Complete. A PS1 game. You will not regret buying that game. Its sole basis is a love story, and a very good story and game in one.

Problem with this thread, which I just noticed it, a lot of people still post stuff in new messages. Recommend me anime like xxxx.

Maybe it will always be like that? people will still post below at the non pinned area.