It would be considered as Arrange Marriage
For Relationship and Marriage - Make a story - Add photographs from the time you met till the time you have filled your forms. Add approx 100 + photographs of your wedding only. I suggest it is better to ever write the relations also on the back side of the pic. Like one with Parents of Bride, Groom etc etc..
Also, when you write the story mention as much as details as possible - Like how you first met, to where you met, name the famous places
Describe your honeymoon story in detail - Like how you started your day what you did after that - The idea is it should be like as novel, when you read it one can imagine the journey. Also, your story should be backed by the location pics you would provide (20 to 30 pics). Write location names on back of the pictures. Add Boarding passes/ tickets of your honeymoon. Dont think about the space constraint add extra pages as required
For Chats - Add Skype screenshots - FB chat history, Whats app history - Add as much as you can - Mine was 400 + pages. Dont remove the fights or any discussions from the Chat. This helps you being in a genuine relation ship.
Add phone logs of communication - better to add phone bills of Canada
Also add Bills of Marriage palace, Caterer, Marriage Certificate, Gurudwara/ Temple Record copy, Shopping bills of wedding shopping or shopping done after wedding. Copy of wedding cards (Both Families).
After all this, I dont think your file can stuck for the interview. It should easily clear.