We had to prove to immigration that we had a bona fide relationship. Seeing as we went from being best friends to being engaged (on a phone call), and this was more than a decade before selfies, we didn't have the typical bf-gf pics, etc. So, J and I brought a file box filled with wedding cards & Xmas cards to us from friends and family, emails, pics. It was a nerve-wracking experience watching the immigration agent go through EVERY piece of paper we brought. Fortunately, they fell for it and we were good!!! LoL!