My take on the "how often did Clark and Kara see each other before this" debate, based on what's been presented in both seasons:
I get the feeling that he may have visited more often back when Kara was first getting acclimated to Earth, just to make sure she was doing alright, but gradually eased off over the years as she started building her own life for herself, because every visit from him would risk undoing all of that if the wrong person made the connections. And I'd imagine it was during those early years together that they would talk about Krypton, because it was probably therapeutic for Kara, who was still recovering from the loss of her old life and wasn't entirely ready to let go of it yet. But by the time we meet Kara in the pilot, I got the impression that she hadn't really SEEN Clark in at least a couple of years (considering she was asking Jimmy about him and what he was like), maybe more, but still had sporadic long-distance contact with him (like holiday phone calls or whatever). When those text messages started in S1, it did seem to catch Kara off guard a little bit, so I got the feeling it wasn't a regular thing before that at all.
So in these episodes they really were like family who were reconnecting after not having seen each other in quite some time (hence Clark's line about how he'd "forgotten" how nice it could be to spend time with someone like himself).
I have to somewhat disagree...
I think he has realized how much he missed out not having a stronger relationship with Kara over the years, and when he said that he wanted to learn more about his parents from her, I don't think it was "more" as in what she has already told him, I think it was "more" than what he has learned about them in his time at the Fortress of Solitude. I think this time with her has made him realize that she was the real source of understanding and knowledge about Krypton, not just what he learned on his own.
Mind you, she is a part of that separation as well, in that he invited her several times to the Fortress of Solitude and she did not go....that is another fact that we know about their relationship.
With all of that said, none of this is from Alex's point of view, yet it is her reaction to all of this that started this discussion.
One's perspective is their truth....and her perspective on all of this is far different than that of Clark or Kara....so for her to react the way she did, from the writer's point of view (which is Alex's POV) I think is that she saw Kara's longing for Krypton, she saw Kara's longing to belong, she saw Kara's longing for a family.....and as Kara herself has said, several times....it was Alex that gave her at least 2 of those 3 things, and when she had the life on Krypton (with the black mercy) she realized who her real family was.....it was the people that were there through the good and bad times, and that for the most part was Alex not Clark....so for Kara to be so willing to quickly move on from that? I can see why Alex was hurt by that. You saw them has family reconnecting......I saw them as family connecting truly, for the first time, and I think that was why she was willing to leave everything behind and move to Metropolis, she was going off of new emotions, not a long felt connection....she was moving into a connection that for a long time was not there, and she wanted more of that. It is like with a new friend, they are exciting, different, everything is new, there is so much to talk about....that we sometimes forget the old friends, until a REAL NEED arises, and then we realize the new friend, is new.....and will be a friend for a long time, but the old friend is the old friend that you have written chapters of your life with, that have helped to make you who you are, and it is the new friend that will learn to write chapters along with you, and hopefully one day help you become better than you were before. I think that is what Kara finally realized....
