。
The taste of love is bitter.
Literal
Romantic-love [of-の] taste [topic-は] bitter.
A short metaphorical statement. 恋の味 literally 'the taste of love' — 味 ('taste') is frequently used metaphorically in Japanese for the 'flavor' or 'feel' of an experience. 苦い is the い-adjective for 'bitter,' also used for metaphorical bitterness as in English.