
What do you mean they are not real lovers? You do not have to say what you are to be what you are. I think if anyone gets in Asami's way, he will erase that person (regardless of gender). I also think it is impossible for Aki to be happy with anyone who is not Asami. Unless Asami gets a sex change, Aklli will not be happy with a girl.

well i now that option 3 would never happen too but it was just a option ^^
and wat if, just if, aki would see his childhood friend who he had a crush on (i on it is clichee and they would right about it but) and just little by little they see each other again more.... ^^ (me just a little dreamy right now how asami would ackt) ^^

Fuck buddies do not live together--and they do not risk their lives for each other. Asami has told Aki that Aki belongs to him, and Aki has admitted he belongs to Asami. The last chapter shows they are each willing to die for the other. What more do you want? May I humbly suggest some further Yoai reading? Try some of these:
http://www.mangago.zone/read-manga/koisuru_boukun/
http://www.mangago.zone/read-manga/totally_captivated/
http://www.mangago.zone/read-manga/bi_no_isu/
Oh there are lots others where you have to judge by actions and not words. I am too lazy to find them.

Its just as Anoni Grrl said Aki and Asami belong to each other. If they were just fuck buddies Asami wouldn't go to Hong kong to rescue Aki from Fei, he wouldn't Aki to move in with him, Asami is a careful man of course he wouldn't let a fuck buddy stay at his house. In their relation Actions speak louder than words. Just because they haven't confessed doesn't mean they are just fuck buddies. I hope now you understand that they are lovers without having the need to confess.

i'm currently reading all the yaoi (those who are completed) right now i'm at page 5... so i now a lot of them (ps i now some ungoing as wel)
and in every one of them, if they not say 'i love/like you' they themself think of them are fuckbubbies if the relationship is a long one...
but don't get me wrong, i now that it does not count for all of them. and i really like the way they doing things... i really do think that they are lovers and stuff, it was just my going on about the 'what if' situation. ^^

Even if Aki met with her, he would find she is no longer so attractive. No one else can make Aki feels what Asami does. The woman will seem sweet in a sort of "wasn't it cute when we were kids?" way,but there will be no slow growing closeness because Aki does not crave sweet or cute. He craves what only Asami can give him. Asami's heat is stronger than some girl's warmth.

I am glad you are enjoying your reading. I know everyone has his or her own interpretations of what is on the page. There isn't a template for how yoai stories must go, but I think it is alt like real life. Sometimes people say pretty words, but they are just having sex, and other times they say few words if any, but their actions show you what they mean. In Yaoi, I often see a theme where one person "confesses" or is more into the relationship, where as the other refuses to admit it in words unless pressed. But when push comes to shove, the reluctant partner does have feelings. So you will see this:
http://www.mangago.zone/read-manga/koisuru_boukun/mh/v02/c002/18/
The "tyrant' won't say "I love you" or admit they are lovers, but he throws a hissy fit when his partner suggest they are "sex friends"--because how could anyone suggest such a thing? Ift he tyrant had no feelings, he would not do such things.
I see a parallel with Aki (although of course they have completely different personalities). After Aki sees Asami with someone else, Aki starts thinking about how the relationship is probably temporary anyway, and trhows his own little fit (though he is not as direct):
http://www.mangago.zone/read-manga/you_re_my_loveprize_in_viewfinder/mh/v07/c036/20/
Because they both have communication issues, we see scenes like this, where Aki is saying one thing but feeling another:
http://www.mangago.zone/read-manga/you_re_my_loveprize_in_viewfinder/mh/v07/c041/15/
When Asami asks if there is anyone else who can satisfy Aki, Aki says only Asami will do. That's pretty clear. If they were just fuck buddies, Asami wouldn't ask, amnd Aki would not answer.

Yes. Sometimes characters have conflicting feelings, or don't want to admit to what they really feel. It adds to the drama. Then I usually look for things like possessiveness and not wanting to let the other be in danger to indicate feelings. There are other ways to indicate feelings: taking care of the other person, going out of their way to get things the other person likes, making sacrifices for the other...etc. When it is just sex buddies, you don't see that.

Ah, yes, in that example one person says "I love you" in words (at least in the English translation), but the other does not. "Special' is something,but then, so is Asami saying "You belong to me" and "If you are with me, I will always have my sweet juice." in return, Aki says things like how he could only think of Asami when he was kidnapped,and how if they die, he wants to die together. Both Asami and Aki have said things to indicate that the other is "special".
I am not sure why you are so into words. Actions mean so much more. Sudouh told Asami that he would do anything for Asami,but Sodouh was lying and cheating Asami all along. Also, there are many options besides 'I love you" and "fuck buddy". Most relationships progress a bit more slowly and have more complexity.
Even if this were the only yaoi where the love was implied instead of stated (which I do not believe is true), in *this* story the love is very much implied.

like i said, i know all that and it is just me being stubborn.
i'm not really in to 'words' and i really like this sort of manga with all my heart (so to speak) and i now manga where they are lovers whitout they saying i love you.
but i also now manga where they don't say it they fight if they really love one other, or where they don't say it and become just fuckbubbies and break up ...
but then again this is me who don't now how to give up in situations like 'this' :p
Did Asami or Akihito said I love you to one another? did i just missed some parts or they still havent really said it >.<