<human>: Condense the text into a few key points

My husband, last night lied to my face about money. I know for a fact he was lying but I haven't confronted him about it yet because I'm not sure what I should do. 

We had some serious martial problems surrounding this same problem (him lying to me about money) soon after we were married (3 years ago), and when we resolved it then he promised to never to lie to me (specifically about money) ever again and if he did I would leave. Lying is a HUGE deal breaker for me. 

So my dilemna is this: This lie though not huge and normally would not be such a big deal but if I do nothing/ just call him out on it, what is to stop him from doing it again?
<bot>: Husband lied to me about money, again. What can I do to show him how serious of a betrayal this is without breaking apart my family?