@trying2learn,
If your most loving relatives are no more then you must be feeling like this because first you will missing the times which you spent with them. But after some time you will be able to forget this types of feeling.
I can understand your problem becuase I also suffered the same problem, just the diffrene is I lost my father.
But I also would like to inform you that like you, your parents also missing their daughter, so if you are depressed like now you are in front of your parents, then your parents also never forget this crush so by this way you also make your parents depressed.
Do you know? when my father died, I always cried, and seeing my crying, my mother could not hold her tears, after that despite I felt so bad but I never cried infront of my mom and always did the things which made my mom happy.
I would like to suggest you to do the same thing always busy your ownself with any work, and do anything which makes your parents happy.
I must say that by this way, you and your parents also get out from this pathetic situation.