AITAH for not wanting to listen to my friend's singing videos?

AITAH? My sweet friend '30 F' keeps sending me music videos of her singing. I, '60 F' find them very painful to listen to. I once suggested she might find a voice coach to help her fully develop her voice. (I do seriously think she would benefit greatly and could improve.) But this suggestion hurt her feelings. I know she wants praise and encouragement, but I just can't. I just say I'm glad she loves singing. I never say anything critical but I now just want out of the situation. What should I do? Should I lie and tell her she sings great? Help me please! I've known her for 15 years and she's important to me.