I think Kurono #2 understands the situation, he won't interfere with real Kurono and Tae, for the sake of them two. Hence is why he said;"Goodbye Tae-chan and met up with Reika again. Probably an abrupt sex-scene is following, like the ones we saw before :').
But eventually he probably will realise that he can't live like that.
I'm not that dissapointed with this development. The following chapters can make or break this manga for me, atm :).