It ended and probably the only way it could have. Ethan and Tristan have an eternity to be together. The end was a bit rushed but I think that the author just wanted it done and over with. All in all it was a good story.
I'm looking for the story about an S esper and an S guide who is also an esper. Last I read both MLs had been in a serious battle and were both injured
Woo-yeon will track her down, kill her. and it won't be pretty