I totally understand how you feel. I just graduated last November to what I'm calling the most lack luster college graduation ever. My family who originally planned on coming, wasn't able after all as life had gotten in the way. My mom and on were the only ones from my family who was there. I cried the entire time because I was so sad about my dad missing it (he passed away). But, like Medusa said, the people who should've been there were there for me and I'm sure my dad was watching from above.

Try to enjoy it because it truly is a HUGE accomplishment. It is, after all YOUR day. Oh, and last but certainly not least, CONGRATULATIONS!!!!!