I "accidentally" broke my boyfriend's prized guitar because he wouldn't pay me back my due rent on the agreed time

We've been together for 4 years. We live in the house i bought together where I pay 70% of the bills and he pays 30%. It's not a problem for me as I earn double than he does. I'm 24F and he's 25M. I'm a software engineer and he is an artist. <br>I was supposed to receive half of the rent a week ago, but he said he had no money and he would have to sell one of his paintings to afford it. I was a bit worried that he'd not pay me but I trusted him and waited.<br>We had a small fight over him being late with the rent and he said he'd order the money this week for sure. I said OK.<br>I went to his studio room one day after he left for work and to my surprise I found a freshly bought art supply.<br>That sparked anger in me and I grabbed his guitar and threw it in the floor (I'm an US size 8 for context, just to give you an idea on how strong I am) after that I grabbed the brown acoustic and also threw it in the ground and it broke into 2 pieces. It was very satisfying and also very scary at the same time. I wasn't proud of what I did and I can only imagine his reaction when he sees it. He loves those guitars more than me because he uses them to make money.<br>I took some pictures and deleted them after and went to work.<br>After I came back from work he was in the couch watching Netflix. I was surprised he was acting normal and I thought he didn't see it because I left it in the floor. After dinner he showed me the broken piece and said: "it looks like you were a bit clumsy huh?" And then I realized he knew so I started crying and said sorry. He said he'd glue the pieces and it would be fine so he wasn't mad at me. He also apologized for being late with the rent but said he didn't deserve to have his stuff broken even if he was late because it wasn't my property and I can't destroy things that aren't mine.<br>He left the house this morning with my money and I'm still shaking a bit because I feel bad and guilty and I don't know what to think. Should I buy him a new one?