Love Hurts

The Japanese phrase 愛は痛み is composed of the words 愛 (read ai) meaning "love", the grammatical element は (in this case read wa) indicating the previous word is the subject and in this case also acts like the English verb "is", and 痛み (read itami) meaning "painful; distressful". This is a complete phrase in Japanese.

The Japanese kanji combination 愛苦痛 means "Love Hurts" consists of the words 愛 (read ai) meaning "love" and 苦痛 (read kutsuu) meaning "pain, agony, bitterness".