What’s wrong with me??

I received some news that my aunt has cancer, breast cancer & its in stage 1 everyone was sad and felt bad ... except me I don’t care at all, i feel sorry about her getting cancer but I really don’t care ? She is a total bitch always talking shit about people especially my mom & her older sister aka my other aunt & I think that aunt is sick as well but she doesn’t say anything she tries to hide it but for her I actually do feel sad she’s always helping everybody & there for everybody & i feel like people think im rude because when my family members talk to me about how my aunt got cancer they cry or something & i just look at them til they get over it im not good with people or feelings i do have emotions i only cry over videos or shows/movies I never cry over anything like people dying or getting sick or something i get super uncomfortable when people talk to me about their problems or feelings... i once broke up with a guy because he cheated on me & he started crying but I started laughing & i just walked away. Am i a shitty or bad person ?