Sonnet #138

I found this sonnet to be strange. The relationship the speaker talks about between the man and the woman is questionable. It seems that it's dishonest all around, but the man seems to disregard all the woman's lies, according to the speaker. The man comes off as a foolish person, and the woman kind of a liar. As pointed out in the lesson today, there's a double meaning to the word "lies," which evokes the meaning of the woman sleeping around. Yet, the man still carries on a relationship with her, although it may just be a casual thing. The second last line in the last quatrain are intiguing because they're saying that "love's best face is in the idea of trust." But how can you maintain any type of trust in a relationship when you're aware of the other party's lies and deceit?