No, he said that he was asked about Cloud and Tifa two years after FFVII was released. I mean think about it, it makes no sense for someone to ask Nomura, "Were Cloud and Tifa in a romantic relationship for two years?" Why would someone ask that? They would most likely ask, "Were Cloud and Tifa in a relationship after FFVII?" and he's saying for two years after FFVII was released, he was asked this and he doens't know cause he doesn't care.
Again he's saying, "I was asked this for two years after FFVII was released." I mean honestly, you could go up to Nomura and ask "Does Cloud have blonde hair." and he'd give an answer like this. I know he would, it's just who he is. Just because he says he wants you to come to your own conclusions doesn't mean they don't have a canon set in stone. He just doesn't care if you disagree with said canon. But in this topic, we're trying to discuss canon, right?
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[/FONT]I'm pretty sure Nomura is saying that he doesn't know if Tifa and Cloud were in a romantic relationship in the two years prior to AC. To clear things up, this is roughly how the interview went:
Nomura was initially asked a question about Sephiroth's love life:
「ところで、セフィロスは今まで何人の女の子と付き合ったことがあるんですか?」
"By the way, up until now how many girls has Sephiroth gone out with?"
He responds by saying:
「スゴイ質問だなぁ。考えたこともないですね。正直、僕は誰と誰が付き合っているとかっていうのは、どうでもいいんですよね。」
"That's a great question... I haven't really thought about it. Honestly, I don't care who goes out with whom."
Then he says:
「ゲームや映像で描かれていないところは、ファンの方々が好きに想像して楽しんでもらったほうがいいと思ってます。想像の余地があるもののほうが終わったあ とに友達と話していて楽しいですし、想像の余地があるもののほうが終わったあとに友達と話していて楽しいですし」
"What's not already shown in the games/films -- I think it's better for the fans to enjoy it by imagining it as you like, and after that you can enjoy discussing about it with your friends"
And follows it up with:
「たとえばティファとクラウドがACまでの2年間に恋愛関係にあったのか?とかよく聞かれたりもしますが、僕は知らないです。」
"For example, I often get asked if Tifa and Cloud were in a romantic relationship in the two years prior to AC -- but I don't know."
Tifa and Cloud's relationship in the time after FFVII up until AC -- similarly to Sephiroth's love life -- is not explored in the franchise. There's really no material covering it. So Nomura is saying that Tifa and Cloud's relationship in the time between FFVII and AC is purely up to speculation.
I hope that made sense and wasn't too confusing...
Cheers.
Edit:
Left out a line of the interview...
Once again, for easier reference, the source is here:
http://ff7-material.jugem.jp/?eid=2086
And the FlareGamer article for comparison:
http://flaregamer.com/b2article.php?p=109&more=1#ixzz0Q7xkVJPB