I'm looking for a manga where a person falls in love with another person of the same gender. Thats rather broad so I'll narrow it down a bit more. I'd like the person to not understand the feelings at first, realise its love, and then try to deny the feelings and struggle to retain platonic feelings.

It can either be male-male or female-female, and the other person in question can be either straight or gay, and the other person can either have the same feelings or not. Also the other person can either express those feelings first or develop them later.

Feed your head.

A side plot of You're So Cool fits that description almost perfectly. (The rest of the story's pretty good too, imo.)

"[English] not only borrows words from other languages; it has on occasion chased other languages down dark alley-ways, clubbed them unconscious and rifled their pockets for new vocabulary."
-James Nicoll, can.general, March 21, 1992

Hen, Ummm, would My Two Wings Count?

[img]http://i215.photobucket.com/albums/cc70/blissfull_wulf/sig%20and%20avvie/Newsiggy-3.jpg[/img]

Girlfriends (MORINAGA Milk)

This signature was recovered from Hades to serve in my rotting armies.

Yatteraneeze! fits your description perfectly.

As for others, I'd say:
Zetsuai
Aitsu to ore