My friends obsession

Ok my friend REALLY likes this youtuber called Sofie Dossi. Sofie is a contortionist and she makes really fun videos. But my friend is way obsessed with her. She wants special contortion boxes likes her, a special leotard catsuit like sofie, she has screenshots of her contortion poses, she copies everything sofie does and says. And NEVER stops talking about what sofie did or said. And honestly it's getting pretty annoying for me and my other friends to listen to 101 things about sofie. But I don't want to upset my friend in any way, but what can we do about it? We like sofie but it's annoying now and what can we do??