Why did people stop caring about my moms death?

It looked like everyone moved on and act like nothing happened. Here I go still grieving over my mother and it’s been almost two months. I work and go on with my life. I feel like everyone expects me to be okay, be tough and be over it. No! I will never be over the loss of my mom. I do my work and everyone at work doesn’t asked me how I’m holding up anymore. They do ask how I am. When I got back from taking time off, NOBODY said “welcome back”, “my condolences”, no hugs NOTHING. They just ignored me. They looked at me and just kept going. My boss was the only one that said welcome back and gave me work which is fine. My coworkers did not say hi, welcome back and straight up told me they need work done and they have a very busy day. I got criticized for being a “moody bitch” and nobody wants to hear me cry for the rest of the work term.
My family seemed to have move on. My older siblings still grieve but they were blasting music and having fun. When people laugh and have fun, I can’t believe I’m depressed. My older sister told me to grieve privately and work isn’t the place to do it and work needs to be done.

Why did people stop caring about my moms death?
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