In a marriage- is a lie just a lie....?

I was caught lying about my credit card balance but it's all in the open now and I no longer have any secrets. Yet my husband has lied to me about his whereabouts and I am pretty sure he cheated on me. I feel like both are lies but his is worse. Some would say that I lied, he lied so we're even. Anyone want to weigh in on this? I want to confront him but he's the type to throw my mistakes back in my face.