Take a gun and a knife and a baseball bat and a friend.
Is there something he can't say on the phone that he must tell you in person?
Does he want you to come there to show you the sights?
Does he want you to come there to show you how to ski?
Does he want to show you his fine Colorado dope?
Does he want you to cook for him?
I would suspect he's at least hopeful it's booty call, especially if you've been flirting back and forth in your chats.
Not that there's anything wrong with that.
Be wery wery careful.