Alex is basically saying how the person he's singing this to has changed while going through some tough stuff and he notices that this person feels alone.
I love the lines:
"Only you know where you have been to, only you know what you have been through."
Alex understands how this person feels that nobody would understand or nobody does. So Alex is like, "I've missed the happy you but things are gonna get better, bro. I'm gonna be here while you go through all this shit and I'm gonna be there when you get over this shit.":)
Alex is basically saying how the person he's singing this to has changed while going through some tough stuff and he notices that this person feels alone.
I love the lines: "Only you know where you have been to, only you know what you have been through."
Alex understands how this person feels that nobody would understand or nobody does. So Alex is like, "I've missed the happy you but things are gonna get better, bro. I'm gonna be here while you go through all this shit and I'm gonna be there when you get over this shit.":)