Spoilers
Amazing game, I loved it all the way through, but I have one complaint. I did the Carl route first, and there was a lot of nice character development and storytelling, but at the end of it you're still just friends with him, after several kisses and an almost-sex scene. Seriously, what the hell!? It just throws everything from that route out the window and has you as his wingman for a date with a girl.
I feel like that's part of his character arch. The whole point of his route is that he is too reliant of others and needs to be more self reliant and confident, and so, staying with you (Chase) would defeat that whole arch by having him stay with the person he has so helplessly relied on for the majority of the route. Hence the line "I don't need you" being positive for Carl. Hope this helps :)