My boyfriend hid a few thousand dollars of debt from me and I’m not sure if I should break up

So here’s the situation. I recently found out that my boyfriend took out a loan for about $3,000 a few months ago and never told me. I only found out because a letter from the lender showed up at our place and I asked him about it.

He said he used the money to help his brother cover rent and some car repairs after his brother lost his job. Apparently his family asked him not to tell anyone because they were embarrassed, and he agreed. So he’s been quietly paying off the loan every month.

On one hand I get wanting to help family. I’m not mad about that part. What bothers me is that we’ve been trying to budget together because we split a lot of bills. Meanwhile he was dealing with thousands of dollars in debt and just never mentioned it.

When I asked why he didn’t tell me, he said he didn’t want to stress me out and also felt like helping his family was his personal decision.

Now I feel weird about it. Part of me understands his reasoning and feels bad for his brother. But another part of me feels like hiding something like that from your partner crosses a line, especially when money affects both of us.

I can’t tell if I’m overreacting or if this is actually a serious trust issue. What would you do in this situation?