a partial answer to that is found in the Edited episode i believeOriginally posted by: Terracosmo
Hasn't Luna always been supportive of Shinn? All the times Shinn has acted badly or whatnot, Luna has been there to either console him or reassure the surroundings that he really means no harm. Also, it still hasn't been stated that they have an relationship - which they probably don't. Who gives a shit about them anyway, I want to know about Gil's & Talia's relationship. Who was the child that Talia mentioned? Why did they have sex in the beginning of the show even though they decided to go separate ways? Why is Talia even in freakin' ZAFT even though she left Gil originally?
Now there's things I want answered
that's where Talia says she can no longer be with Gil since she wants to have a child (so that would mean that ZAFT/Plant couple people together at random? isn't that illogical?)
and assuming they did have sex it could be explained that they still have feelings for eachother, since they were separated quite forcefully
but they don't say if Talia had a child whatsoever
and about Talia being in Zaft, that might be because of Junius 7, since that was a reason for many coordinators to enlist, even though she strikes me as a bit too old to enlist and make such a rapid promotion
anyways, the latter part is speculation and i'm not quite sure the first is totally accurate either, would have to watch the Edited episode again for that