There is a word in Japan called "Narita Break Up", because in Japan, many newlyweds or lovers get off the plane after their honeymoon and break up directly. So now many people think that honeymoon should not be after the wedding, but should travel together first, and then decide whether to get married.
Travel is indeed a very beneficial weapon to test whether two people are suitable. From the preparation before the trip to the various episodes encountered during the trip, their personality and problem-solving ability can be reflected, and whether they can tolerate and compromise each other can be verified.
If you can tolerate each other when you are most tired, understand each other, and still don't dislike each other when you see each other's ugliest, then they should be suitable for living together! If there is no big contradiction together, then we will have more energy to deeply understand each other's bright spots, and to some extent, we can better promote each other's feelings.