There's a bit of an ache there. Gaia's eyes are cast downward for a moment because it's clear that Sephiroth is putting up walls and somehow it seems she might be to blame. Of course it's not completely true.

It's just that she wished she could offer more encouraging words for someone whom she's coming to see as a friend rather than just ally or acquaintance. Not that she would put it in so many words. A soft sigh escapes her and Gaia looks up again, collecting herself.

"It's only fair you make those decisions for yourself." Who is she to say that he must find himself a mother figure or search for word of his real mother? "Though at least it sounds like you're getting along. So... I'll try to speak to mine."