all the animes I am reccomending has some sort of romance in them... though in the end in the anime do they actually bloom and admit... thats a different story....
-DNangel
-Elfen Lied (warning: bloody, violent, nudity)
-Black Cat (kinda... but the main characters seem to be love interest or possible love interest dies early on in the anime but still really good)
-Gakuen Heaven (Boys love)
-Gakuen Alice (cute... you realise people have crushes on the main character... but like in the fruits basket anime... nobody admits it to her)
-Kyoshiro To Towa No Sora
-Strawberry Panic (girls love)
-Cardcaptor Sakura
-Angel Sanctuary (incest)
-Tsubasa Chronicles
-Vision Of Escaflowne
-Air (sad)
-Fullmoon Wo Sagashite
-Please Teacher
-Please Twins (kinda a sequel to please teacher... but different people... you just see the previous people in certain scenes)
-Kare Kano
-This Ugly Yet Beautiful World (warning: Nudity... i think)
-La Corda D'oro
-Karin (aka Chibi Vampire)
-Fushigi Yugi (Cheesiest anime I ever saw)
-Myself; Yourself
-Kamichama Karin
-Shining Tears X Wind
-Zero No Tsukaima (Perverted)
-Prism Ark
-Xclamp (i cant remember if there is any real romance in it... but its just a really good anime)
-Goshusho-sama Ninomiya-kun (perverted)
-Saint Tail
-Kamikaze Kaito Jeanne
-Yamato Nadeshiko Shichi Henge (aka The Wallflower... aka Perfect Girl Evolution)
-Rosario + Vampire (perverted)
-Hakushaku To Yousei
-Kuroshitsuji (no real romance... just plain awesome
You should read the manga Tokyo Babylon and watch the 2 Ovas.... I think its awesome... its my favourite....
I hope my list helps you... enjoy!!!