you use most of the time, and your "second language", and the words from the 3rd one that you use, and how they are particular to the two of you, because they reflect your relationship - it's mostly a proof of your relationship, so be confident - it will go well! For the other questions&gt; 1- it fits to explain how your relationship developed... you started by email because you needed information about hockey games, then you met in person, liked each other, and got together as a couple - it seems like a very natural way for a relationship to develop.... 2. same - include it in the explanation that you will write. Explain how you can not remember the exact day but yo know it was in september 2009, and you met in such and such etc. 3.no - see earlier. 4. financial support : it is only one aspect of the relationship, not compulsory. If you have some financial link, then write it. If you don't support each other financially for any reason, just explain - no worries. 5. Cohabitation: as long as you came home every week end, then it's like a business trip - so it "counts" - at least in my opinion. You were away on a business trip but you maintained your residence with her, left most of your stuff in the house I suppose, and did not "move out" but rather just travel because of work - and that's allowed! you kept