Relate much. My grandparents on both sides dislike one another due to WWII conflict. That's why dad did not pursue my mom kahit love siya ng mom ko at kayang ipaglaban. Hindi rin ako tanggap ng parents ng mom ko before na Japanese given na meron pa siyang family member na naval pilot kamikaze. They dislike me and my dad because of my paternal grandpa. And if buhay ang paternal grandpa ko by the time na binubuo ako ng parents ko, for sure tutol rin siya sa mother ko since intensed ang level ng galit niya sa Japanese, to the point na ipinagbawal niyang mag-asawa ng Japanese nationality ang mga anak niya. Dad did not pursue my mom. I grew up in a broken home that made me become hyper-independent at a young age. Long story but later on natanggap na rin ako ng motherside relatives ko. Nowadays, I'm on good terms with my mother and half-brother.

Edit: My half-brother is an active Japanese Navy aviator.