half the truth is often a whole lie
Not being completely honest can be as deceitful as lying; intentionally omitting information is equivalent to lying. I know you want to protect his feelings, but you really need to be honest with him. Half the truth is often a whole lie, you know.
Half the truth is often a whole lie.
Prov. If you do not tell the whole truth, you can mislead people just as if you tell them an outright lie. Jill: You lied to me. Jane: I did not. Everything I said was true. Jill: But you didn't tell me the whole story. And half the truth is often a whole lie.