The phrase "to put your faith in" essentially means "to trust". So to say, "Don't put your faith in love" would mean, "Don't trust love". Out of context in a larger passage it's difficult to say, but it sounds like the writer is warning the reader not to completely rely on or place all of their trust in love - either in general or to resolve some specific problem.

I think it's true argument cause when u fall in love with someone you become as a blind person I mean your mind stop thinking about the bad behavior he or she do just always you want to say this person is perfect for me

I think it means"Don't trust the word called 'love' ."(like there is a saying goes"love is a disease" lol that's only my personal understanding, don't know whether is correct or not, so I just comment here, not answering.)