Okay but have you considered THESE for your OTP:
- Who steals the whole fucking blanket in the middle of the night and leaves the other without any?
- Which one is always stubbing their toe and screaming about it?
- Who crashed a car and made the other pick them up at 3AM?
- Which one is the lightweight that needs to be watched over at all costs?
- Which one likes to get up in the middle of the night and (loudly) make themselves a snack?
- Who is always suggesting they get another pet?
- Who drinks straight up black coffee and teases the other for their overly-flavored Starbucks?
- Which one insists upon buying unheard-of health foods?
- Which one would run through a busy street just to pet a small dog?
- Which one always mispronounces words and gets constantly corrected by the other for it?