I am not sure that language is the issue here.
I think the ending is made in a way in which you can't be sure if everything about him turning into a cat was a dream or if the ending is a dream and you don't know what will happen when he wakes up.
In my opinion they are going to have a happy ending, but given the whole feeling of the story it couldn't be shown, cause it would break the storyline. The friend has a boyfriend who is dying and can't be saved, and the guy who chases after him (the one with glasses) won't ever fulfill his love. The other friend (the rich piano boy) won't be able to obtain his parents' love. The veterinarian is also stuck in an unrequited love... adding a happy ending wouldn't fit.
But the title says "somewhere in time", that may be a way of telling us that "somewhere in time they are going to meet and be happy together", but it is left to our imagination.
I though it was just lost mumbo jumbo at the end but this brought it into perspective damn now I gotta go cry or sum
I'm so lost about all the new chapters. I don't understand what is happening, maybe it's because english is not my native language.
So can someone explain me what happenned ? It was a dream ? Time travel ? @__@