What does it mean when a guy says "I miss you"?

Anonymous
I met this guy, and we've been exchanging texts all day everyday. We admitted to liking each other, and plan on going on a date soon. He always says "Even though I don't know you in person yet, I feel like I miss you" and he says it a lot. It's really sweet and I've never had a guy say that so I'm not 100% sure what he means?
What does it mean when a guy says "I miss you"?
4 Opinion