Before I forget, here's how to handle the situation if someone else comes to her defence instead of yours. Flip your tune about ham, complimenting and praising her, but reiterate that you feel attacked by her. It throws people off the idea that you could be the bad guy. third party: hey anon, don't call ham's anime childish, that's mean. you: don't get me wrong, I think it is great that ham has these interests. They seem to make her really happy and I think that's awesome. But I personally don't like those things and would prefer not to have them shared with me. turn to ham, with a sweet pleading voice You can respect that, can't you? Once again it puts her on the spot as the bad guy, shutting her down and discouraging her from trying to pester you again.