Don’t know if I can do it anymore

Me and my partner have nearly been together 4 years. We’ve had massive ups and downs but recently I felt we were much better, closer than ever. Stronger than anything and now it all changes and I don’t know why. This man is a great father but I’m not convinced he’s 100% as committed to me anymore. Meaning when times get rough he’s not committed to working things out. He will constantly walk away and this damages me really badly because how do you have a relationship with someone who doesn’t want to talk it out? I used to do it when I got really angry, I used to not say anything and walk away because I didn’t know how to handle the situations. My emotions when I feel them, I feel them really hard. But he said he didn’t like that I did that so I worked on it and I stopped. I don’t walk away without saying anything, if I need space I say it. I’ve really worked hard on myself and I can finally say I’m happy with the way I deal with situations. I’m much calmer and I don’t allow my emotions to take over to the point I’m hyperventilating. Rarely I have a panic attack but that’s because of past traumas. I hate shouting and being shouted at, I overall hate negativity. Anyways, today was one of those moments. He came home really happy, surprised me and our daughter with a box of biscuits. Really lovely. Then I asked if on the way to his parents tonight if we could go to the shop because my mum asked if I could get something for her for Xmas as she can’t find it near her. I said yes because it’s on the way. It’s literally not even 3 minutes from his parents and he said yes. I also asked whilst we were going to the shop if we could get some alcohol for Christmas because I hate leaving things right till the last minute. I said tomorrow I need to tidy the flat and finish the grout before my family come and Sunday shops shut early(we aren’t always the most organised and sometimes forget this on a Sunday). We also are visiting his family on Sunday to do present and card drop offs. But we could have easily gone to shop before we did that. He literally put words in my mouth and said that I said I didn’t want to go on the weekend. When that’s not what I said at all. He got irritated about it and he did end up explaining that he took it the wrong way. But his actions after this really shocked me. He showed no sympathy when I was crying my eyes out because I felt like I’d been attacked emotionally for no reason as he did not explain anything beforehand. He would just keep walking out in annoyance and then say he’s not annoyed so I was like why can’t we just talk it through and work it out? He ended up shouting in front of our daughter, I did not of course. I went and walked away in tears and said I need space. I had a real bad panic attack, all doors were open so he could definitely hear me as I get quite vocal without choice when I’m hurt. On top of that I walked back into the living room and he didn’t bother to check on me but saw I was crying. This happens when he’s angry. It’s like he completely ignores my emotion and is void of any sympathy. It then makes me feel like I’m in the wrong and I end up feeling guilty so I go in to talk to him. Again I was calm but upset and I just told him that what I previously told him is I can’t be with him if he’s going to be like this. As much as I love him, it’s too painful when he does this stuff. The walking away, the shouting, slamming doors etc. sometimes even just leaves doesn’t tell me where he’s going and I’m crying and I’m worried and my daughter gets really stressed. I’m then left with our daughter and I have to be strong for her and calm myself and her down. I’ve also told him that if it’s like that again I’m leaving because I’m at my wits end and it’s not fair on our daughter. I’m being the sensible calm one and okay I am not perfect and never will be and I still make mistakes but if I asked him not to do something to me then I wouldn’t go and do it to him. He ended up hugging me and getting down on his knees and saying sorry. He just doesn’t understand and refuses to see it from my perspective. I love him and I know there are so many times where I could have walked away. But I have faith because he has proven he can get better before. This is his last chance but I’m fed up. I just want to be happy. Don’t I deserve that?