im looking for any romance manga where a girl is friendless or an outcast until she becomes friends with a guy! something in the vein of kimi ni todoke, say i love you, or mars would be great! thank you guys!!! ≧ω≦

Is it required that she gets friends after getting close to that guy?
Machida-kun no Sekai
The Gods Lie
Hoshi no Samidare she has nobody before
Kumika no Mikaku
Last Game kind of
Tetsugaku Letra weird case where both get influenced strongly by each other without being friends
Isshuukan Friends.

in need of romance?
uncommon, sad, sweet

Yugami-kun ni wa Tomodachi ga Inai