I really sympathise MMM. If I'm reading you right, the bank card thing is just an example. You have to put up with this kind of thing every day, more than once - is that the case?
Welcome to my life. Here's a fun example - when DS and I arrived off a 20 hour flight in Jan, H picked us up at the airport, made it a few metres out onto the main road and we ran out of petrol. Sat there in exhaustion and filth for 40 mins while he went to get petrol. Got home to the burbs, he'd left the keys in the other car which was at the mechanics back in the city centre. I said, get the spare key that I hid in that pile of roof tiles like I told you and showed you at the time. Tiles had been taken away by landlord in my absence, under H's supervision, no memory of stashed key. So we had to go all the way back to the city to pick up the other keys. After a 20 hour journey, I emphasise.
All totally forgivable, of course, if it's a once off weird situation. But when it goes on and on and on every day, it becomes very difficult. So maybe I think I understand where you are coming from.
What is so much worse in my case is that my husband had an affair while I was away on that trip. Really struggling with the aftermath of that. What happened is that resentment at his failure to make a living, develop himself as a person, and his constant screwing up of even the tiniest thing made me so resentful I ended up turning into a bitch, not showing him any affection, terrible sex life. So, understandably feeling unloved, off he goes (NOT understandably).
I have posted about what is going on with me, take a look perhaps. But I'm sorry if I can't offer you any answers. I am really struggling to deal with the situation. There are reasons I sort of want to stick with him. But watch out very very much for this person he is getting close to at work. Given my experience, I would ask him outright if anything has already happened. If not, and you believe him, talk about avoiding it even if you think you might want to separate. It's best to make that decision (if it comes) without the rage and grief that an affair can cause.