Your feelings are understandable. Been there done that! I have no clue how to control the lies and spending.
I do think you need to say something to him vey similar to your last few sentences. However, I'm not sure you need to apologize. You might also sit down wih paper, pencil, and bills to let him get a visual of what comes in what needs to be paid and what goes out monthly.
I know this worked for us about 12 years ago. But truthfully, I married a spender. If he wants it, he'd buy it. Didn't matter that the kids needed shoes or we had a major expense coming up.
5 years ago I separated the money and accounts. It was the only way to survive for me.
When you can't make a decision because you are torn between your heart and your head, listen to the half with the brain.