"I love you" in dinosaur language is "RAWR!".
Saying RAWR to someone means "I love you" in dinosaur language.
The phrase "RAWR" in dinosaur often also includes an "XD" for extra, cutesy emotion, which also brings back the classic early internet scene and kid nostalgia.
My dad would always say RAWR to me as a kid when he would get home or when he would be leaving for work.
I would then say RAWR back to him and it was such a fun way of us saying I love you.
I would also say RAWR to my mom as well and she would say it back to me.