How do you let things go???

How do you move past when SO says hurtful things? He says he is sorry and didn't mean it. I don't want to hold onto it but I also don't want to let him off the hook.

Yesterday I was sick. Actually hungover (he drank with me and it wasn't crazy we were just at home drinking wine and beer). It's not something that happens often. My head was pounding so bad and I was nauseous and threw up several times throughout the day. Finally around 3pm I started to feel better which happened to be the time I had to go to work. I didn't eat anything until about 4pm because I couldn't.

I don't live with my boyfriend but I spend about half of the week there so I usually clean up and put up clothes while I'm there. Well yesterday I didn't do it because I felt awful and when I got off work I went to my house like we had planned. When he got home he saw that I didn't clean up. I apologized and told him how I was sick. He knew I didn't feel well but I gave him more details. From there he got so mad. He said how I was well enough to go to work so why couldn't I clean. He then said that I was lazy and selfish which hurt because none of that is true. And I would think him for one would know that. Then he said it might be time for him to find him another woman who cares and who is not lazy and selfish like me. He basically broke up with me and said he wanted me to give him his key back. The thing is I know I have been a good girlfriend to him. I'm human just like he is but I am always thinking about him and just wanting to make him happy. So all of this hurt me so bad. I had an off day. I begged for some understanding. It went on for about 2 hours between talking on the phone and texting. I can understand if he was upset about the house not being clean but we should be able to talk about it and I should get some understanding and grace sometimes.

So before we went to bed he apologized. He apologized this morning some more and said he understands that I was sick and he took things too far. He says he didn't mean it. I told him he said it like be meant it. So I want to know how do I deal with feeling hurt and also accepting his apology. I'm also struggling because I feel if I just move on from it he will think it's ok or not that big of a deal. We've been together 2 and a half years and this is not the first time he has taken things too far. Idk.