It's so pure that looks weird and very unnatural. I don't understand, they already are 30 and they so blushing only because of kissing. Author, are you serious?!
If he won't die, it would be good, of course, but , on the other hand, if he'll die, it would be such a great end too. I just don't think that if hero die in the end honorably, it's bad. In my opinion, the ends like that are nice in their own way.