He’s not being honest w/ me about our finances

Ok so I’m just gonna dive right in...

My husband and I have been married for 9yrs (together 12yrs total). We are honest with each other about everything. We talk about everything. We always have been very open with each other. Our relationship has always been pretty amazing bc we’ve always gotten along, we rarely ever fight. A couple years ago we hit somewhat of a “rough patch” bc I felt like we had different goals in our lives (I wanted a baby, a bigger house, and I wanted to repair our credit). I didn’t feel like he wanted any of those things, but we talked about it and decided we were on the same page. He said he wanted all those things too. So, we took out a personal loan to pay off ALL of our credit cards to start repairing our credit to buy a bigger house and be financially ready for a baby. This was 2 years ago. My credit score has went up to 760 (which I’m super freaking proud of). I’ve asked him what his score looks like and he says “much better”. Life has been dandy and I thought we were on the right path. So recently I’ve thought about refinancing that loan since my credit score is so much higher, I thought I might be able to get a better rate and pay it off faster. He says he’s on board for that. So I’m checking rates and I know we each have a credit card with small balances so I thought I’d throw those in there too...

Here’s where y’all are probably gonna judge me, but I honestly didn’t think he had anything to hide... I checked his credit. Just to see how much he owed on that ONE credit card so I could potentially pay that off too. I thought I was doing the right thing. TURNS OUT he has several credit cards that equal about $10k!!! And he has some medical collections that I had no clue about (one of his boys had to have surgery last year so I’m sure that’s what they’re from). The kicker is that he stopped making payments on his credit cards like MONTHS ago. So while I’m over here living in fairy tale land repairing my credit for the good of our family, he’s over there TANKING his. His credit score is 517.

We both work and make good money so our finances are pretty separate for the most part. It’s always worked for us. I still just don’t know how I could miss this... like how does this happen?! How could I not know?!

So what do I do now?? I don’t know how to address this. We’ve NEVER had an issue as big as this. I don’t know what to do...

** UPDATE: I just straight up told him what I saw. He feels horrible. He said he was embarrassed and ashamed. I completely understand that. The problem is that he hid it for so long, we are supposed to be a TEAM. I told him that we need to make some major changes. I’m still having some trust issues but we’re working through it. I told him I would help him, but this is the last time. If we run into issues like this again, our marriage would be in serious trouble. I love him so much and I know he feels bad, truly. I hope we can fix this! 🤞🏼