HI jrae. I am sorry for your loss. It sounds like you have strong feelings that others do not feel. It is sad that others do not feel compassion or loss but everyone grieves in their own way. Some feel it intensely while others may be in denial. It is not a personal attack on you, although that does not make the pain less.
Have you considered a grief support group? The advantage to them is most or all there know what loss is and support you. It can be a refuge and a place to confide how you are feeling.