It is really upsetting to see Sebastian leave but I guess it is what he thinks its best for the young master. We have seen Sebastian's goal to get his master back home and if he is the reason why his master won't return then the only option he could think, to get the young master home, was to leave. Dante look alike doesn't seem to like the host life but he is doing it to stay with sebastian, and it is pretty reasonable for sebastian to feel guilty beacause he wants the young master to be happy and the job is eating the young master alive.... Even tho we all know that their happiness is eachother ╥﹏╥
It is really upsetting to see Sebastian leave but I guess it is what he thinks its best for the young master. We have seen Sebastian's goal to get his master back home and if he is the reason why his master won't return then the only option he could think, to get the young master home, was to leave. Dante look alike doesn't seem to like the host life but he is doing it to stay with sebastian, and it is pretty reasonable for sebastian to feel guilty beacause he wants the young master to be happy and the job is eating the young master alive.... Even tho we all know that their happiness is eachother ╥﹏╥