就那样，我恋爱了。

Just like that, I was in love.

《柯林斯英汉双解大词典》

我恋爱了！

I'm in love!

《牛津词典》

我恋爱了，这个感觉是嫉妒。

I was in love; the feeling was jealousy.

youdao

- She turns to the most salient-- -- and this is the way social psychologists would say it-- -- turns to the most salient object in her immediate social environment-- -- that would be me--and says she's in love.

她转向于最突现的-,社会心理学家会说-,转向于直接社会环境中最突现的实体-,这个实体就是我,并说，她恋爱了。

耶鲁公开课 - 心理学导论课程节选