u/Emotional-Leg-2719

For a bit of context - we’ve been living together for a bit over 7 months. I had been taking care of groceries the whole time through a mix of getting produce at a local market and other things through amazon (we don’t have a car so that was the easiest way to get groceries). I would pay for it all, pick groceries for both of us, put them away, etc. A few weeks ago he started saying he wanted to contribute and signed up for one of those weekly grocery delivery services. We picked the groceries together and split the total 50/50. He did this once, and for the last 2 weeks he has not placed an order for groceries. The next week he claimed the payment went through late after i sent him money for half so we missed the cut-off for the delivery, and told me we would get the groceries the next week. I asked him yesterday if the groceries were coming today (they’re always delivered on Wednesday) and he immediately got really upset and said he didn’t place the order because he was busy with things (he doesn’t work, is in a masters program part time and games about 90% of the time he’s awake, often overnight). I asked him to then send me the $60 i sent him back and I would just order groceries again as I had been doing, and he got very defensive and claimed he used some of it to buy food at cvs and started calling me annoying and saying I was acting like a had half a brain cell for not understanding. He had only gotten a gallon of tea and a baguette at cvs, which I am well aware does not cost $60, and he should also still have his half of the grocery money if the orders never went through. I did honestly start getting pretty upset/annoyed because none of that was making any sense to me, and I feel like he’s not being truthful about what he actually used the money for. Also just generally annoyed that he offered to help contribute, did it once, and then flaked for 2 weeks in a row with no communication until I asked if the groceries were coming, and then just immediately got angry and defensive when the conversation came up. AITAH?