Full transparency

I was reviewing today my immigration documents (well because I am paranoid and need to get everything right), and it said that failure to disclose a common law partner etc. would make you inadmissible etc.

I thought to myself, wait a minute, do I need to disclose my imaginary boyfriend? 😱

Now this is something I felt I needed to ask about, although my asking may raise red flags around how accurate my answer was to the question of not having any mental problems O.o