Hey icecreambenjamin, your comment was transphobic and necessary. A callout is not a judgment of your character, but an attempt to point out a misstep so that you can improve and relegate such offenses to your past. And if someone calls you transphobic, rather than being defensive, no matter how convinced you are that you are a strong ally to transgender people, the best thing to do is to consider why someone is calling you that and to honestly consider whether there is any truth statement, any way you can correct your behavior to be more supportive of transgender people. It's really great that you have helped your friend through instances of bigotry; however, that does not make you a paragon of trans validation. (Also, why did you call your friend "a transgender?" The word is an adjective, not a noun. That phrasing is hardly a large issue, but it's certainly irritating.) You're cis and unfortunately, transphobia is deeply ingrained in our culture and people must be constantly, actively trying to eradicate it and remove that bias. Internalized messages and ideas can still affect your behavior without you even realizing. Please, let trans people dictate what is and is not offensive. You, as a cis person, hardly have the right to decide what is not offensive. Good on you for apologizing, though! I just suggest you take another fraction of a moment to consider if what you're about to say may be offensive next time. 