Is it normal?

My partner (together about a year) is always grouchy. He swears and raises his voice at inanimate objects (tv, phone, remote, dishes, chairs, car.. whatever isn’t working properly or is “in his way” or whatever..) It makes me really uncomfortable and in a way, scared at times. It loud and it’s just so angry. I’ve mentioned it to him so many times and how it makes me feel. He always says he’s not aiming it at me and there’s a big difference to if it was aimed at me.. but I kind of indirectly feel like it is “at” me sometimes. For example, he forgot his wallet when we were going to the Sports Club yesterday and when we got there and he realised, he shouted very loudly “omg are you f*ing serious!?” It echoed through the car park and people turned to look at what was happening. It was super embarrassing and I actually felt quite shaken up by it. He had a bit of a rant about it on the way back home and then we sat in silence until he had his wallet, at which point he got back into the car like nothing had happened and was happy as. I told him I was a little shocked by his reaction and that people had been looking at us in the car park and he said “yeah well it’s just a bit stupid that I need my license to get into a place when I’m clearly over 18.. at least I didn’t take it out on you”. When he gets annoyed with his phone or the tv or other pieces of technology, he will throw/slam phone, remote, small devices near me and say I need to “deal with it before he loses it”. Then I “deal with it” and he’s happy and lovey again. I’ve tried to end the relationship over it recently because I just hate the example it sets for the kids we each have (both have kids from previous relationships) but he says I’m giving up on what we have too easily and he didn’t think I was a quitter. I don’t know why but I always feel so crappy and low lately. We’ve had other issues here and there, nothing really major but even when I’ve raised those issues, he says I must just enjoy conflict because if that (issue at the time) is the worst I can say about him, he’s really not that bad and I need to stop being so confrontational and show him more love. My previous marriage of 6 years (5 years ago) was full of DV and this is nowhere near as bad as that but I’ve found myself feeling like I’m both trapped and overreacting at the same time :( is it just me? Am I expecting too much?

Editing to add, he went out to get something from his car this morning and my son followed and got in the back. I went to get my son and saw 5 longneck bottles of beer in the back and some random cans of other alcohol thrown around. (We normally don’t use his car at all when we go anywhere together, he uses his for work only). I asked him about it because we’ve previously discussed his excessive drinking a few times in the past, as he’s previously drunk to the point he’s slurring his words and stumbling around talking crap about me loving my exes more than him and how he wishes my kids were his biologically so my exes wouldn’t exist. He promised he would stop drinking because he acknowledged there was an issue and his dad was also an alcoholic, which he resents his dad for now.
I’ve told him I can’t do this anymore and he’s said the same things about being disappointed that I react to “small things” and I should know he doesn’t respond well to relationships when there’s not enough love shown to him. Unfortunately, he’s tested positive for covid and so did my son, so we are all isolating and I just feel like once the isolation period is over, he still won’t be going anywhere because he’s not respecting any of what I say, just twisting it constantly :( rentals are ridiculous at the moment and neither of us could afford to take this the current one on alone (Sydney. Another 5 months on lease). He also has no family or real friends (they’re interstate) so I sometimes feel like he’s also just staying for convenience.