Really? Letters about the relationship may serve as evidence to prove emotional bonding to IRCC?2. support each other financially and emotionally
(you need proof of a significant degree of attachment, such as insurance, benefits, finanical support, gifts, letters about the relationship history written by each other, etc.)
Where did you get those informations? I could definitely use some official source.4. present yourselves in public as a couple
(letters from family, friends, social media posts, marriage announcements, photos of you as a couple)