bro,
good to hear that you know someone who is beautiful and nice!
This is what I think:
- she is a nice person, and she is nice to everyone. You think she is only nice to you that way, but this is not true. She is nice to several guys.
- These kind of girls are approached by lots of men. You are not the only one who is admiring her!
- She gave you a kiss on the cheek _> friendszone
- your FB message is too vague: 'hang out
sometime'. Now what? You expect she will propose a time and date and place? No, she won't. The best respons (if she responses) is: "yeah, we should do that sometime'. And you are as far as now, and that's nowhere.
- Be direct, concrete and leading. Build in a false time constraint. Be not needy
- say this: Hey [name], I will be in [her town] at [date] for some meetings. I won't be back for a while. I need a listening ear for crazy things (good things

)that happened lately. Let's grab a coffee & sandwich at [pub].
Goodluck!