Write a small text to a guy who sends me videos and stuff as if we are a couple but I have a bf and I want him to know I have a bf and that i appreciate the videos but that I’m in a relationship

Hey, I just wanted to thank you for all the videos and messages you've been sending me. I really appreciate your thoughtfulness. However, I just wanted to be transparent with you and let you know that I am actually in a relationship with someone else. I hope you can understand and respect that. Thank you for understanding.