Here I rewrote one of your paragraphs:
Elva and I were language exchange partners while I was residing in Taiwan. We would regularly schedule meetings, dedicating two hours of conversation - an hour in English and an hour in Mandarin - to mutually improve our language proficiency. A few years ago, Elva met a Swedish individual while he was studying in Taiwan, and after he returned to Sweden, Elva visited him. This trip occurred during the peak of the Covid-19 pandemic, though it was not intended to be timed in such a manner. I have long been eager to visit Elva in Sweden, and as I was planning a trip to Amsterdam, I decided to combine both trips into one. She resides in the city of Malmo, which is conveniently located just a 30-minute train ride from Copenhagen.
The train journey from Copenhagen to Malmo was delightful, but I shall save that experience for another occasion to share.
Maybe try to writer better next time, since your making good rewards anyway.