im looking for a good action romance manga that is also mature... I'm fed up with picking random mangas and then dropping them after few chapters .. i seek something with an intrersting, resonable plot, something about a MATURE love between people. the love doesn't have to be a main subject of the manga, but I want it to be there. and it also has to include a little action . also the drawings have to be good like wolf guy-wolfen crest or akumetsu something like that 😀 😀 😀

well if u put in all three of the genres you search you'll got :
http://www.mangaupdates.com/series.html?genre=Action_Mature_Romance&perpage=50
from all of those, since you're looking for ones with good plot, i suggest:
Basilisk fully scanlated (if i'm not mistaken)
Kandachime
and there's also Aa Megami-sama.. though may not be what you're looking for but i think it's a good recommendation

How about Sanctuary and Eden?
You might also like Kurozuka , Kiseijuu , Hellsing and Battle Royale.

Totally second Sanctuary.

Eternal Sabbath
Monster - kind of, the romance takes a long time to develop
Parasyte

And if you don't mind a truly weird-ass romance, try Leviathan. The romance isn't the most significant element, but it's there...

until death do us part unless u want mature love as in kind of sexual... then i will have to come back with some dark seinen for ya.

BTW.. kurozuka is a good choice even if the end is kind of weird.

Try Strain and crying freeman

Dead End
No. 5

Seconding Strain, Crying Freeman not so much.

Nononono and
Nicoichi

Blade of the Immortal
Black Lagoon
Kurozuka
*damn. This was recommended... well in that case I second Kurozuka.

I didn't like it, but Dance in the Vampire Bund.
Was Berserk too obvious to mention?

And more. Seinen has a lot of romance, actually.

World Embryo--pretty damn awesome...one of the most selfish protagonists out but that aspect makes him quite human I guess.

I second Dance in the Vampire Bund--apart from the lolicon nudity(part of plot and only when required) it is pretty damn good

Angel Beats--best anime of the 2010 spring season

Fire Candy though its on hiatus and its got gore, smut and drugs so be warned.

Threads of Time
second Parasyte/Kiseijuu

Zetman
And perhaps Aflame Inferno, might suit you even though it's not categorized as mature.

THANKS.. U guys have been really helpful 😀 😀 😀