Is this a good gift for my boyfriend?

so I have a boyfriend, and we're both really into Disney Pixar stuff (toy story, Up, ect.) and our 1 month anniversary is coming up on the 15th, and I wanted to get him a little buzz lightyear key chain with a note that said ''I love you to infinity and beyond'' is it to soon to say that? or like to intense or whatever for only being together for one month? thanks (we're 13)