My friend wants to go vegan/vegetarian, but...

[illinoisemakerr]

So, I have a friend who is thinking about going vegetarian.(she's lactose intolerant, so she'll be an accidental vegan.) I'm happy for her, but the thing is that she thinks that there are certain types of vegetarians that eat fish and/or seafood. I spent a good amount of time in class today explaining to her that vegetarians eat no meat, and a fish is a type of meat. She then told me that fish don't really even feel pain, so it would be fine if she ate them. After that, I told her that fish, and all other meat sources, have a central nervous system, so they feel pain. She still does not believe me, and wants to continue eating fish and seafood.

Anyways, the reason I came to you guys with this story is because I have no clue what to tell her. I kinda like this girl, so I want to tell her in the easiest way possible without shoving facts down her throat. Any ideas?

PS, mods I am really sorry about not adding tags. I don't often post on communities, other than comments.. so I'm not sure how to add the correct tags...