[From his perspective, Asch knows he'd pushed Natalia away because he wasn't Luke fon Fabre any longer. Having cast aside his past, there was little point in reliving its memories when they had far more important things to deal with, like Van's stupid plan. But now, he finally understands that both he and the replica each had their part when it came to being Luke fon Fabre, the Scion of Lorelei. And at this point in time, Asch has also come to terms with it.

If they're each somehow returned to their worlds and respective points in time back home, then there's nothing but his own demise awaiting Asch. And he knows in what little time he has left where- and whenever Natalia's from, he doesn't really take the time out to confide in her or indulge her.

Now is all the time I have! Once, he'd yelled this in anger, challenging his replica to find out who should confront Van. But the sentiment still applies here—this is the only chance he has to give Natalia what he couldn't (and probably still won't give her) back on Auldrant.]

Not really. Looked like you came out here for a breather— [Pausing slightly, he turns to gaze at her before giving her hand a little squeeze in return.] —so I came to keep you company.

[There. It's only a small gesture, but at least it's something. Still, Asch can't help the feeling he should say more, before he no longer has the chance to do so.]

...And to say sorry for pushing you away all this time.