You don't love him after a week .. You're infatuated, and that's an awesome feeling , enjoy it :) come ask again in 8 months and I'll tell you how and what to tell someone you love to make them feel aweeome :E
I'm looking for a nice long paragraph that'll make my boyfriend smile. I've only been dating him for a week, but I want to tell him how much I love him. Thanks?
You've been dating this young man for ONE WEEK and you want to tell him that you love him?
Girl, he will run for the hills!
You need to spend a lot of time getting to know him, his likes, his dislikes, who his best guy friend is, what hobbies he has, and etc.
You can certainly tell him how much you like him and how much you like being around him, but it is way too soon to throw love out there, IMO.