[makoto's glad for the accepted invitation for physical contact (something rin has taught him, over time), and makoto feels that much more at ease now. he does his best to give sousuke his space, because that's something makoto can understand painfully well about the older teen.]

We... used to be, yeah.

[and it's almost crystal clear that sousuke is partly curious about it]

It took us some time to get on the right footing, but eventually we started hanging out a bit and, just doing things. I won't expect that from you now though. If it happens, it happens, and if it doesn't--that's just life, right?

[...]

At least when it comes to Rin, I hope we can get along still. Not for his sake, but because it'd be nicer if you felt comfortable hanging out with him when I'm there, too.

[that makes sense, doesn't it? it's a reasonable thing to aim for.]