What does she want to say??

One of my friend(f) posted a story with his brother(maybe cousin) on her insta with this quote or whatever it is.

If he doesn't my brother will..🤍

What does it mean?? What does she want to say???

One of my friend(f) posted a story with his brother(maybe cousin) on her insta with this quote or whatever it is.

If he doesn't my brother will..🤍

What does it mean?? What does she want to say???