AITA for cutting ties with my dad after he didn’t help my mom?

My mom (F56) died six months ago after a brutal fight with pancreatic cancer. It was awful, watching her become weaker day by day, along with the hospital bills piling up. My dad (M60), who’s loaded (like, owns multiple properties, drives a nice car and all) refused to help. I (F28) begged him, literally begged. I told him I’d pay him back every cent, even offered to sign a contract. But he just said, "It’s not my responsibility. She made her choices." (They divorced when I was 10, he cheated, but come on she was the mother of his child.) The worst part? He had the money, he knew she was dying.

After the funeral, I blocked him everywhere. No calls, no texts, no "happy birthday" bullshit. My aunt (his sister) says I’m being "too harsh" and that "family is family," but how the fuck do you just watch someone die when you could’ve helped? and family is family? my mom was family Now he’s reaching out, acting hurt, saying "I miss you." But all I can think is where was that energy when my mom was begging for pain meds we couldn’t afford?

AITA for never wanting to speak to him again? Or should I "be the bigger person" like everyone keeps telling me?