Definition
Completely and intensely in love with someone.
如痴如醉
He's been head over heels in love with her since the moment they first met.
从他们第一次见面的那一刻起，他就深深地爱上了她。
She fell head over heels in love with him after their first date.
第一次约会后，她就深深地爱上了他。
Despite their difficulties, they are still head over heels in love with each other.
尽管他们遇到了困难，他们仍然深深地爱着彼此。