1-For example, you have to define who takes care of the documentation and who takes care of the essential items to bring. This way, you also reduce the chances of forgetting to do certain important things or to bring something necessary.
2-Bear in mind that you have to "work as a team"; It is a great advantage to have the support of a travel companion and even better when it is your partner. But sometimes traveling as a couple is not only about "sightseeing" and seeing incredible places, it is also about creating bonds and achieving synchrony.
3-If there are any uncomfortable situations, remember that you are there to connect and to take a break from the routine that can be so difficult sometimes.
4-Take into account each other's interests and be flexible on your trip.