What is one thing that romeo Montague would tell rosaline if he could?

If Romeo Montague could speak to Rosaline, he might express his deep regret for not being able to fully convey his feelings for her before his heart shifted to Juliet. He would likely tell her that his love for her was genuine, but he was ultimately unable to find happiness in their relationship. Romeo might also wish her well, acknowledging that his newfound love has opened his eyes to a different kind of passion.