do i have the right

to be happy when my happiness is causing another person's pain? 

Do I have the right to run off and create my own happiness when that happiness USED to be someone else's?

Do I have the right to smile and laugh while that person is off crying?

Do I have the right to be happy again?

I don't know. I hate being selfish and only care about my own feelings.

I'd rather the other person be happy too, but I know that it's not going to happen overnight.

Should I wait? Should I go?