Really? Ending? You kidding me! Its yaoi...plz be more sexy...any kiss? Any sex?huh...

It is not yaoi, it is shounun ai - boys love/brotherly love - want yaoi+cats - http://www.mangago.me/read-manga/kuroneko_kareshi_no_asobikata/

Maybe not a Yaoi, but it supposed to be romance, isn't it?

Hmm. perhaps the tag should read bromance? The summary itself does not state any bl pairings - which is usual in yaoi.