...that would be rather bizarre.
An index of tropes about insisting (correctly or not), that two very close people are not going out, and hence are in a platonic relationship. Contrast Index of Romantic Couples.
- Bathtub Bonding
- Belligerent Sexual Tension: Two people who are secretly attracted to each other cover it up by bickering.
- Better as Friends: Two friends try having a romantic relationship, but decide they'd rather just be friends.
- Commitment Issues: A character is reluctant to settle down with a Love Interest.
- Everyone Can See It: Everyone else knows they're attracted to each other, even if they don't realize it themselves.
- Fake First Kiss: Two characters with Ship Tease kiss, but it still doesn't lead to a Relationship Upgrade (they will often make excuses that it wasn't really a romantic gesture due to the circumstances).
- Fake Relationship: They're actually not in a romantic relationship, but pretend they are.
- Fallback Marriage Pact: Two friends make a pact to marry each other if they're still single by a certain age.
- Friends with Benefits: Friends who have sex with each other, but aren't in love.
- Heterosexual Life-Partners: Two people of the same sex who are very close friends with no romantic/sexual feelings.
- Innocent Cohabitation
- It Meant Something to Me: Two people pretend to be in a real relationship (either with or without both characters' knowledge), only for one person to reveal they've developed genuine feelings for the other.
- Just Friends: Two people insist they're only friends, but chances are they won't stay that way.
- Like an Old Married Couple: Friends bicker and banter the way a married couple might, but without being married.
- Like Brother and Sister: A male character and a female character have a sibling-like relationship.
- Mistaken for Cheating: A character mistakenly believes their significant other is cheating on them, often due to seeing them with someone who turns out to be a friend or relative.
- Mistaken for Romance: The relationship between two characters is mistakenly believed to be a romantic one.
- Not a Date: Two characters hanging out together are mistakenly believed to be on a date.
- The Not-Love Interest: A character who fulfills many of the roles usually designated to a character's Love Interest, only there's no romantic relationship between them.
- Platonic Boy/Girl Heroes
- Platonic Co-Parenting
- Platonic Declaration of Love
- Platonic Kissing: Two characters kiss, but it's not a romantic gesture.
- Platonic Life-Partners: Two characters of the opposite sex who are very close friends with no romantic/sexual feelings.
- Platonic Prostitution
- Platonic Valentine
- Pseudo-Romantic Friendship: A friendship between young friends looks a lot like a romantic relationship.
- Relative Error: A character mistakenly assumes a character's relative (usually a sibling) is their significant other.
- Secret Relationship: They're in a romantic relationship, but pretend they're not to everyone else.
- She Is Not My Girlfriend: A character insists that another character is definitely not their significant other, though they usually will be soon enough.
- Ship Tease: Dropping hints that characters may be attracted to each other, but leaving it ambiguous.
- Strictly Professional Relationship: Two characters who work together insist on keeping their relationship professional despite being attracted to each other.
- Stupid Sexy Friend: A character unwillingly develops an attraction towards a friend.
- Suggestive Collision: Two characters accidentally fall down together in such a way that it looks to others that they're being intimate.
