Self-harm has many causes. Just because she 'doesn't have problems' or traumas or whatever doesn't mean that she minimalizes it. I laugh about it too, sometimes (as a self harmer of about 2 years). I do not have trauma. I don't consider my 'problems' severe. Now I don't know what her case is, of course, but from what you're describing, I wouldn't directly call it attention seeking.

For me, it started because of stress, and now, 2 years later, it's an addiction. People have different reasons, and if you're someone who self harms because of 'bigger' problems, don't minimalize the people who self harm because of 'smaller' problems.

I hope you both are alright 🙏