Anyone would have done the same thing if you think about it I mean imagine you died and when you wake up there's a man in front of you telling you you're in another world and that you have to fu** him and then an option gets presented to where you can go back to your old world I mean it's not like he didn't sacrifice anything to be with Naji he sacrificed the opportunity to see his family ever again and here you are saying he is a bad partner when he genuinely cares about his partner and is actually sympathetic enough to care weather people live or die wich is not an easy decision to make and yeah he didn't tell his husband probably because there was not enough time and he had to make a decision and the decision he makes are not for use to criticize 
Comment by Bl lover😏💖 on AnimePunk314
1 Reply
@Bl lover😏💖 His practically ignored his family to live in the fantasies of bl novels anyway, miss his family, that's hilarious! The only thing he seems to mourn is his lack of Po**/Bl novels. Also exactly! He made the decision to stay in this world, to be mates with Nagi and share their lives and territory responsibilities. Yes the other two will die, but no where does it say instantaneous death, they will just have to die as nature intended, aging. So where is the excuse to cause his mate such emotional pain, when the other pair, aren't even an actual couple? For hundreds of years they just been doing nothing with all the perks of the job? Kotone is a bad mate for these reasons not because he didn't physically kill someone, but because his mates needs play second fiddle to a strangers want to live and never grow old and die.