Is it normal for my parents to fight a lot?

I’m pretty sure it’s normal for parents to fight. But I’m just wondering if my parents fight too much. To be honest, I’ve never seen them kiss or hug or say they love each other. The only time I saw some affection towards them was when they joke around with each other, play games, or celebrate their anniversary.

So to get to the point. My parents don’t full on fight. No plates are thrown, no punches, no mean words (at least, not swearing), or anything like that that screams abuse or something. But they fight a lot. Usually bickers, but often th buckets turn louder and they get upset and start yelling. Like just now when I was “sleeping” they were fighting about something? I don’t know what. The subject matter is never memberable to me, because it’s all stupid little things. But yeah they fight, and my dad goes “do you talk to your coworkers like this?” Dead silence. “That’s what I thought.” It really pisses me off because at the end of the fight my dad always turns himself into a victim. Now, don’t get me wrong, I do think he’s the victim most of the time. But he always goes “poor me, I’m the good guy and you’re always the fault!” When he brings it on himself. He does this with me, too, when I tell him to go away because I’m upset. He’ll keep coming back and I’ll have to tell him to go away until I yell it, then he gets all offended like “IM the good guy!” And leaves dragging his feet. Just my observation.
Back to the fight. My mom gets heated and goes “what’s your problem?” He goes “you’re always talking to be in a condescending voice!” And I don’t know what happened the rest but he leaves eventually. The same thing happens every time, he gets all huffy and bangs around, muttering about how it’s never his fault and that she’s a jerk, and then stomps over to me and goes “she always does this! She’s so mean, isn’t she?” And we have a discussion about how he’s in the right and “what would’ve you had done?” And I just nod and agree otherwise he gets upset like “everyone’s attacking me” etc. And he leaves. My mom goes into her room and doesn’t return for a while. I’ve never heard her cry before so I don’t know if she cries when she does this. She’s very good at concealing it.

I would say this was a medium to low fight, this happens maybe once or twice a week. More scattered lately because it’s Christmas and stuff, everyone’s “happy”. Bickering happens almost every time they interact, but I don’t think there’s hard feelings because my dad doesn’t usually react.

It’s true my mom can be a bit.. strict. She tells us what she wants and she wants it right now. She cracks the whip and gets things done, but she’s very affectionate. She’s not a bad mom, I think she’s amazing. Because my dad is pretty lazy and doesn’t do things and spoils me so we need someone in the house with pants. Anyways, she loses a bit of that affection when talking to my dad. It’s true he slacks off and doesn’t pay attention to other’s needs, and sometimes I think he needs someone to just tell him that. But I do wish my mom wouldn’t get to angry with him. Because I think he’s also partially the victim. There’s no sides or good guy vs. bad guy when they fight. My dad is a bit oblivious so he doesn’t know or understand when he gets confronted. Either that or he just cares about himself, I don’t know. So he thinks he’s being attacked when he’s confrotned. And my mom probably gets into defense mode because he begets this angry face, and he’s very big and intimidating and will raise his voice if needed.
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I don’t know if this is important but it doesn’t bother me too much when they fight. I mean, yeah it’s annoying when they start yelling because I’m listening to music, but they usually leave me alone. Sometimes my dad brings it on me or makes me feel sad because he insults her behind his back. He does this with me too if he doesn’t win a fight he mutters things under his breath. It makes me sad. I wish my family would get along. I don’t know if people understand this but it’s every man for himself in my house. I need to take care of myself, with the help of my mom. I need to protect myself from everyone in my family. It’s a constant battle ground.