Английский словарь американских идиом - carry a torch

or carry the torch {v. phr.} 1. To show great and unchanging loyalty to a cause or a person. * /Although the others gave up fighting for their rights, John continued to carry the torch./ 2. {informal} To be in love, usually without success or return. * /He is carrying a torch for Anna, even though she is in love with someone else./