You should respect your partner if they are genderfluid.
Leon's significant other, Pat, has recently come out to Leon as being genderfluid.
Leon wants to talk to Pat about their identity.
Leon asks Pat about their preferred pronouns and if he can help them in any way.
Leon laughs at Pat, telling them that being genderfluid isn't real and refuses to use Pat's correct pronouns.
Pat feels supported and their bond with Leon becomes stronger.
Pat is hurt and saddened by Leon's actions and the couple breaks up.