Sorry for the long one

So my partner of 1.5 years and I have been in a rough patch . Whenever we fight he says “ i always interrupt “ which I’ll admit I have done a few times . Last fight I realised I was in the wrong and I completely apologised and understood where he was coming from .

Yesterday we had a fight , my car broke down . He told me the mechanic who came to our house said we had too clear the oil out, change the seals and service the car . When we were watching tv I asked him what will we use to empty the oil out . He wanted to do it himself .The car is mine , he drives it a lot . I felt bad making him do the things for my car because I felt bad . The original mechanic quoted us thousands . My dad paid part of my car for me . He asked me to tell him the exact cost of the repair . I was a bit confused about what needed to be done / the names of it. I have zero clue about cars . When I asked the names / if he thinks I should get a different quote . The mechanic company who gave us the quote charge way more than taking it to a shop . He got so mad at me telling me to “ listen , listen, listen” / “shut up and listen “ .

He said he told me that he was going to speak first . I honestly didn’t hear him as we were watching tv . I then said I’m really sorry for interrupting you I honestly didn’t hear you say you were speaking first . He was really mad . I then asked to explain myself . As I spoke he was mimicking me with his hands and said “ no go ahead continue with your bulls**** “ . I immediately broke down I was so frustrated as I was trying to diffuse the situation by apologising and explain . He started making fun of me and mocking me , putting the rude finger up . When I said he was so disrespectful . He told me “ it’s because I interrupted him , which is my own fault “. I then tried to ask him to cool down and speak I’ll acknowledge how he feels . I said I was sorry . I then asked him to listen to me and he said “ no I don’t want to it your fault “. The fight made me so frustrated he just kept mocking me I couldn’t even talk . It ended up with him trying to leave saying “ he’s sick of me not doing the one things he asks me “ . I said I was sorry again. When I finally got to explain what happened i told him I was confused about the car , I was trying to understand and get quotes , he said “ how can you not understand , a child could ! “. I understand if I was wrong for interrupting but I always feel Like i am the one to blame. He always breaks my requests I ask him to stop storming off , being disrespectful and calling me names . I admitted to him I’m sorry I interrupt I’m trying really hard to stop . The reason I do it is coz he speaks so rudely to me I hate sitting there and copping names etc .

I understand if I’m wrong . I just don’t know how to feel at the moment . I need more opinions so I’m not being biased to my own opinion .