[maikaru]

What it says:

昨日の写真は何を狙った訳でもなく、皆が騒ぎ出すまで、誰かに似てるとか似てないとか、そんな の思った事も なかったんだけど、確かに言われてみれば紛らわしい写真だったかもね。紛らわしいツイートして ごめんね。自 分の恋愛をTwitterで晒すような事は今までもこれからもしないよ。ありがとう。

I didn't aim at doing anything with yesterday's photo, but it went so far as to cause people to be surprised, and people to say this person looks like "Someone," and even though I had never thought that before, of course if I'm told this then it does look like a suspicious picture. I'm sorry for making a suspicious tweet. I have never, and will never, expose (better word is like announce) my love life on twitter. Thank you.

She basically is meaning like, she would never announce that she's in a relationship on twitter before making a formal statement.

And she further explains in another tweet that it's an actor, Asahi Uchida, and that she's "already known him for about 7 or 8 years, so please calm down. "