AITA for moving my paycheck into a separate account after my partner kept “accidentally” overdrawing our joint one?
34M, living with my girlfriend (31F) for a bit over a year. We’re not married. When we moved in together we agreed to use one joint checking account for shared stuff: rent, utilities, groceries, cat food, the boring adult things. We both earn decent money, not rich, but stable. The agreement was simple: we each transfer a set amount on payday, and whatever’s left in our personal accounts is our own. She suggested the joint account idea first, because she said it would reduce stress and prevent arguments. I liked that. For the first few months it worked fine.
Then the “small accidents” started. The joint account would dip lower than expected, and she’d say she forgot she used the joint card for a personal thing. The first time it was a pharmacy run, and I didn’t care. The second time it was a dinner with friends and she said she grabbed the wrong card. After that it became a pattern. Random charges: clothes returns and re-buys, a salon payment, a concert ticket, a streaming trial that turned into a monthly charge. I asked her to please stop using the joint card unless it’s shared, because it messes up the budgeting.
She got annoyed and said I was being “weird about money” and she’d fix it. She did repay a couple of charges, but not always, and it always turned into a conversation about how I’m making her feel judged. Last month the joint account overdrafted. Rent still went through, but we got hit with a fee. She swore she didn’t know it was that low and she “only” used the joint card for a few things because her personal account was tight that week. I asked why her account was tight, and she said it’s none of my business. Which, fine, but then why is the joint account covering it. I told her we need to pause and reset because this is not what we agreed. She said I’m acting like her father and she shouldn’t have to ask permission to use “our” money.
This week it happened again, but worse. I got an email alert that the account was under $200, which makes no sense because we’d just transferred money and the bills weren’t due yet. I checked and saw a $480 charge from a furniture store. I asked her about it and she said she ordered a small desk for “our place” because she wants to start doing yoga videos at home and needs a spot for her laptop. I said that might be for the apartment, but it’s still a non-urgent purchase, and you didn’t even mention it to me. She snapped and said I’m controlling and treating her like a thief. We argued, and she told me she feels “financially unsafe” with me because I track everything.
I told her I only track the joint account because it’s literally for shared bills. After that I changed my direct deposit so my paycheck goes into my personal account again, and I set an automatic transfer to the joint account for my half of expenses, plus a small buffer. I also moved the joint card to a drawer and told her I’m not using it day to day anymore, only for bills. She called it a betrayal and said I’m sabotaging the relationship over “a couple mistakes.” Now she’s telling friends I cut her off and they’re looking at me like I’m some stingy villain. AITA for separating my money again, or is this a normal boundary when someone keeps blurring the lines?
