I think if this is the funeral of someone you cared for, then you should go and pay your respects.
"My definition of housework is to sweep the room with a glance"
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I think only you can decide ultimately.
If this is about paying respects, then do it NOW.
Thank you for the responses. It's funny because while a majority of the ivillage posters have leaned more on me going to the funeral, my family and friends feel that it is inappropriate now. His girlfriend is there to support him, and I need to realize that we have both moved on and his father knows that I have been heart broken since I learned his passing. The money for me to travel is an issue. I would have to buy a last minute plane ticket from CA to NJ and would only be staying for 2 days. I am not sure if i should personally call his mother next week and express my heartache and sympathy or leave it be. I have mailed a card and flowers which they should be getting tomorrow. The funeral is this friday and it seems that i wont be able to make it. I'm very sad and still feel i should be there but it might be too late.
I think if you give it some time and grieve it would be good.