Is it normal that me & my brother have no sibling relationship??

Basically me & one of my older brthers have no kind of relationship watsoever.
I am 21 & he is 27. We grew up in the same house throughout the yrs etc. Growing up my father was a functioning alcoholic, when I was about 12 my parents divorced & my mther moved out . I'm very close with my father up until now. I personally feel like growing up I been through more thingd than my brther. I in a sense have more of a nitty gritty experience of the dysfunctional times in our house than he does seeing how I had no choice because he was at the age where he had a car & could just drive & leave . I can't really rem us ever being completely close. I also feel like he wasnt ever a "big brther" in my eyes . For instance, when I was with my ex (couple yrs ago) me & my ex got into an altercation , my brther nvr really took it like how in my view a regular big brther would, my brther jst asked wat happen in which I didnt really tell him because we are not close, & it was obvious what happ . Most big brothers wouldve said how bad they're gonna beat his as.s for touching his little sister!! (lol) I mean it's not expected at this point..
Whenever he's around its just an odd era mostly because we're siblings & dont have any kind of relationship. We tried a few times to establish a relationship, but it just never stems . At my age now I dont mind it ,it just is what it is cus it's been years . Also it's an odd era whenever his gf is over since I'm sure he's told his gf how we dont talk etc.. ( I also felt that way around his ex). I'm a very realistic,at times blunt person, so I don't really feed into the "phony " things family normally do around such as talk as if we normally talk like that when nobody is there, it just annoys me. So ya that sums it all up. I also have an older brother and when me and him talk we r pretty close. Leave what ya think..!