Verb conjugation of "relapse" in English

There were two options, a connection flight to Phuket and one to Krabi. Generally, I wanted to reach the western part of the country, because it apparently had better weather this time of year.
I have sent you my e-mail address. If you want to write me there, I could view the messages immediately. It would be easier than on the Vocabulix forum, as I'm not online often enough.
Which region in Germany are you from? I live in Aarau in the state of Argau, that is in the middle of Switzerland not far from Zurich, Lake Zurich and near the border city of Basel.