Am I in the wrong??

My best friend got married 5 years ago. She suffers from depression and I think a mild bipolar disorder - no diagnosis because she refuses to consult a doctor and gets very hostile towards friends and loved ones even when all we care about is her health and well-being.

Me and my boyfriend are close with her and her husband.

They are going through some stuff. And I messaged her and him the exact same thing.

I said "JUST SO YOU KNOW, I'M ALWAYS HERE FOR YOU. LOVE YOU GUYS"

I sent that message to him and to her.

And literally two days later she showed up at my house screaming because I apparently love her husband and I'm causing turmoil.

Was I wrong to send him that same message? Both of them responded well - til she found out I texted him too