Why do I want to "ignore the world" every time I feel angry?

For some reason every time I get slightly angry my body just wants to ignore everyone? And I feel so mad because the voice im my head just says "I want to cut all conections with people and never have any kind of relationship again, I just want to be quiet as much as possible and never interact again". And it's so fucking stupid and I don't understand why this happens, it just doesn't make any sense and it happens every time.

As a side note, my grandpa used to ignore me when she got mad, my theory is that I stole this from her in some form? Idk if it's something linked with genes or not, it's so annoying because my mind starts fantasize my entire life as an anti-social guy but it doesn't make sense because I like being with another people, and I feel like my emotions aren't as mature as they should be (M16 btw), like, why so infantyle????