The invitation to crash for the night means a lot, the same way that the invitation to see inside at all did. And it's just easy to get carried away with anything that makes him happy or excited, and sure some of it is performative but it doesn't mean the underlying sentiment is insincere.

And so help him, this door into his brother's life opening back up so readily after how badly he fucked up makes him happier than most things. Happy enough for him to feel guilty because he knows it's more than he deserves. He's had about all the discomfort he can handle for one night, though.

"You mean it?" He asks with a near puppy-like grin. "This will be great! We have so much to catch up on, you'll have to tell me all about everything that's happened. What are your bandmates like, do you eat anything for breakfast these days-- are you seeing anyone?"

At least he's enthusiastic?