"痴情" 在英语中可以用 "infatuated" 来表示。这个词来源于拉丁语 "infatuatus"，意思是 "迷恋的" 或 "着迷的"。例句如下：

I'm infatuated with her. 我痴迷于她。

He's infatuated with the idea of being rich. 他痴迷于富有的想法。

She's infatuated with the new singer. 她痴迷于这位新歌手。

另外，"痴情" 还可以用 "crazy in love" 来表示，意思是 "疯狂地爱"。例句如下：

They're crazy in love. 他们疯狂地爱。

She's crazy in love with him. 她疯狂地爱着他。

They're crazy in love with each other. 他们彼此疯狂地爱。