Dear X,
Hi, I know this is forward but I just wanted to say that I really had a great time getting to know you. I honestly cant stop thinking about our small conversations and just the funny things we joked about; you probably don't remember, which is fine but I just wanted to let you know that it meant a lot to me. I love that we love the same things, have the same sense of humor, and play off of each other's vibes (if that's the appropriate terminology). I loved making you laugh and seeing you smile and reciprocate the feelings back to me. I know you were probably being friendly and I understand (I have the tendency to over analyze things and read people the wrong way). I just wanted to say, again, that I can't stop thinking about it (and you). I wanted to see if you ever wanted to hang out or get brunch or something? But it's okay if you don't because I know this is a lot. Anyways, thanks for making me happy. I'd love to hear back from you.
Sincerely,
Me